Adopt shorter identifiers

Also, slightly reformat the source code according to clang-format.

12 files changed, 572 insertions, 592 deletions

diff --git a/README.adoc b/README.adoc
index ceab31c..2f4f353 100644
--- a/README.adoc
+++ b/README.adoc
@@ -44,7 +44,7 @@ The standard means to adjust the looks of the program is through GTK+ 3 CSS.
 As an example, to tightly pack browser items, put the following in your
 _~/.config/gtk-3.0/gtk.css_:
 
- fastiv-browser { -FastivBrowser-spacing: 0; padding: 0; border: 0; margin: 0; }
+ fiv-browser { -FivBrowser-spacing: 0; padding: 0; border: 0; margin: 0; }
 
 The GTK+ inspector will be very helpful, should you want to experiment.
 
diff --git a/fastiv.c b/fastiv.c
index e51f7f3..25b8109 100644
--- a/fastiv.c
+++ b/fastiv.c
@@ -28,10 +28,10 @@
 #include <fnmatch.h>
 
 #include "config.h"
-#include "fastiv-browser.h"
-#include "fastiv-io.h"
-#include "fastiv-sidebar.h"
-#include "fastiv-view.h"
+#include "fiv-browser.h"
+#include "fiv-io.h"
+#include "fiv-sidebar.h"
+#include "fiv-view.h"
 #include "xdg.h"
 
 // --- Utilities ---------------------------------------------------------------
@@ -191,10 +191,10 @@ load_directory(const gchar *dirname)
 	g.files_index = -1;
 
 	GFile *file = g_file_new_for_path(g.directory);
-	fastiv_sidebar_set_location(FASTIV_SIDEBAR(g.browser_sidebar), file);
+	fiv_sidebar_set_location(FIV_SIDEBAR(g.browser_sidebar), file);
 	g_object_unref(file);
-	fastiv_browser_load(FASTIV_BROWSER(g.browser),
-		g.filtering ? is_supported : NULL, g.directory);
+	fiv_browser_load(
+		FIV_BROWSER(g.browser), g.filtering ? is_supported : NULL, g.directory);
 
 	GError *error = NULL;
 	GDir *dir = g_dir_open(g.directory, 0, &error);
@@ -240,7 +240,7 @@ open(const gchar *path)
 	g_return_if_fail(g_path_is_absolute(path));
 
 	GError *error = NULL;
-	if (!fastiv_view_open(FASTIV_VIEW(g.view), path, &error)) {
+	if (!fiv_view_open(FIV_VIEW(g.view), path, &error)) {
 		char *base = g_filename_display_basename(path);
 		g_prefix_error(&error, "%s: ", base);
 		show_error_dialog(error);
@@ -284,7 +284,7 @@ create_open_dialog(void)
 		"_Open", GTK_RESPONSE_ACCEPT, NULL);
 
 	GtkFileFilter *filter = gtk_file_filter_new();
-	for (const char **p = fastiv_io_supported_media_types; *p; p++)
+	for (const char **p = fiv_io_supported_media_types; *p; p++)
 		gtk_file_filter_add_mime_type(filter, *p);
 #ifdef HAVE_GDKPIXBUF
 	gtk_file_filter_add_pixbuf_formats(filter);
@@ -356,13 +356,13 @@ spawn_path(const char *path)
 {
 	char *argv[] = {PROJECT_NAME, (char *) path, NULL};
 	GError *error = NULL;
-	g_spawn_async(NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL,
-		NULL, &error);
+	g_spawn_async(
+		NULL, argv, NULL, G_SPAWN_SEARCH_PATH, NULL, NULL, NULL, &error);
 	g_clear_error(&error);
 }
 
 static void
-on_item_activated(G_GNUC_UNUSED FastivBrowser *browser, GFile *location,
+on_item_activated(G_GNUC_UNUSED FivBrowser *browser, GFile *location,
 	GtkPlacesOpenFlags flags, G_GNUC_UNUSED gpointer data)
 {
 	gchar *path = g_file_get_path(location);
@@ -416,12 +416,12 @@ on_open_location(G_GNUC_UNUSED GtkPlacesSidebar *sidebar, GFile *location,
 static void
 on_toolbar_zoom(G_GNUC_UNUSED GtkButton *button, gpointer user_data)
 {
-	FastivIoThumbnailSize size = FASTIV_IO_THUMBNAIL_SIZE_COUNT;
+	FivIoThumbnailSize size = FIV_IO_THUMBNAIL_SIZE_COUNT;
 	g_object_get(g.browser, "thumbnail-size", &size, NULL);
 
 	size += (gintptr) user_data;
-	g_return_if_fail(size >= FASTIV_IO_THUMBNAIL_SIZE_MIN &&
-		size <= FASTIV_IO_THUMBNAIL_SIZE_MAX);
+	g_return_if_fail(size >= FIV_IO_THUMBNAIL_SIZE_MIN &&
+		size <= FIV_IO_THUMBNAIL_SIZE_MAX);
 
 	g_object_set(g.browser, "thumbnail-size", size, NULL);
 }
@@ -430,10 +430,10 @@ static void
 on_notify_thumbnail_size(
 	GObject *object, GParamSpec *param_spec, G_GNUC_UNUSED gpointer user_data)
 {
-	FastivIoThumbnailSize size = 0;
+	FivIoThumbnailSize size = 0;
 	g_object_get(object, g_param_spec_get_name(param_spec), &size, NULL);
-	gtk_widget_set_sensitive(g.plus, size < FASTIV_IO_THUMBNAIL_SIZE_MAX);
-	gtk_widget_set_sensitive(g.minus, size > FASTIV_IO_THUMBNAIL_SIZE_MIN);
+	gtk_widget_set_sensitive(g.plus, size < FIV_IO_THUMBNAIL_SIZE_MAX);
+	gtk_widget_set_sensitive(g.minus, size > FIV_IO_THUMBNAIL_SIZE_MIN);
 }
 
 static void
@@ -482,8 +482,7 @@ on_key_press(G_GNUC_UNUSED GtkWidget *widget, GdkEventKey *event,
 			on_open();
 			return TRUE;
 		case GDK_KEY_l:
-			fastiv_sidebar_show_enter_location(
-				FASTIV_SIDEBAR(g.browser_sidebar));
+			fiv_sidebar_show_enter_location(FIV_SIDEBAR(g.browser_sidebar));
 			return TRUE;
 		case GDK_KEY_n:
 			spawn_path(g.directory);
@@ -641,11 +640,11 @@ toolbar_connect(int index, GCallback callback)
 static void
 on_command(intptr_t command)
 {
-	fastiv_view_command(FASTIV_VIEW(g.view), command);
+	fiv_view_command(FIV_VIEW(g.view), command);
 }
 
 static void
-toolbar_command(int index, FastivViewCommand command)
+toolbar_command(int index, FivViewCommand command)
 {
 	g_signal_connect_swapped(g.toolbar[index], "clicked",
 		G_CALLBACK(on_command), (void *) (intptr_t) command);
@@ -677,21 +676,21 @@ make_view_toolbar(void)
 	toolbar_connect(TOOLBAR_BROWSE,        G_CALLBACK(switch_to_browser));
 	toolbar_connect(TOOLBAR_FILE_PREVIOUS, G_CALLBACK(on_previous));
 	toolbar_connect(TOOLBAR_FILE_NEXT,     G_CALLBACK(on_next));
-	toolbar_command(TOOLBAR_PAGE_FIRST,    FASTIV_VIEW_COMMAND_PAGE_FIRST);
-	toolbar_command(TOOLBAR_PAGE_PREVIOUS, FASTIV_VIEW_COMMAND_PAGE_PREVIOUS);
-	toolbar_command(TOOLBAR_PAGE_NEXT,     FASTIV_VIEW_COMMAND_PAGE_NEXT);
-	toolbar_command(TOOLBAR_PAGE_LAST,     FASTIV_VIEW_COMMAND_PAGE_LAST);
-	toolbar_command(TOOLBAR_SKIP_BACK,     FASTIV_VIEW_COMMAND_FRAME_FIRST);
-	toolbar_command(TOOLBAR_SEEK_BACK,     FASTIV_VIEW_COMMAND_FRAME_PREVIOUS);
-	toolbar_command(TOOLBAR_SEEK_FORWARD,  FASTIV_VIEW_COMMAND_FRAME_NEXT);
-	toolbar_command(TOOLBAR_PLUS,          FASTIV_VIEW_COMMAND_ZOOM_IN);
-	toolbar_command(TOOLBAR_MINUS,         FASTIV_VIEW_COMMAND_ZOOM_OUT);
-	toolbar_command(TOOLBAR_ONE,           FASTIV_VIEW_COMMAND_ZOOM_1);
-	toolbar_command(TOOLBAR_PRINT,         FASTIV_VIEW_COMMAND_PRINT);
-	toolbar_command(TOOLBAR_SAVE,          FASTIV_VIEW_COMMAND_SAVE_PAGE);
-	toolbar_command(TOOLBAR_LEFT,          FASTIV_VIEW_COMMAND_ROTATE_LEFT);
-	toolbar_command(TOOLBAR_MIRROR,        FASTIV_VIEW_COMMAND_MIRROR);
-	toolbar_command(TOOLBAR_RIGHT,         FASTIV_VIEW_COMMAND_ROTATE_RIGHT);
+	toolbar_command(TOOLBAR_PAGE_FIRST,    FIV_VIEW_COMMAND_PAGE_FIRST);
+	toolbar_command(TOOLBAR_PAGE_PREVIOUS, FIV_VIEW_COMMAND_PAGE_PREVIOUS);
+	toolbar_command(TOOLBAR_PAGE_NEXT,     FIV_VIEW_COMMAND_PAGE_NEXT);
+	toolbar_command(TOOLBAR_PAGE_LAST,     FIV_VIEW_COMMAND_PAGE_LAST);
+	toolbar_command(TOOLBAR_SKIP_BACK,     FIV_VIEW_COMMAND_FRAME_FIRST);
+	toolbar_command(TOOLBAR_SEEK_BACK,     FIV_VIEW_COMMAND_FRAME_PREVIOUS);
+	toolbar_command(TOOLBAR_SEEK_FORWARD,  FIV_VIEW_COMMAND_FRAME_NEXT);
+	toolbar_command(TOOLBAR_PLUS,          FIV_VIEW_COMMAND_ZOOM_IN);
+	toolbar_command(TOOLBAR_MINUS,         FIV_VIEW_COMMAND_ZOOM_OUT);
+	toolbar_command(TOOLBAR_ONE,           FIV_VIEW_COMMAND_ZOOM_1);
+	toolbar_command(TOOLBAR_PRINT,         FIV_VIEW_COMMAND_PRINT);
+	toolbar_command(TOOLBAR_SAVE,          FIV_VIEW_COMMAND_SAVE_PAGE);
+	toolbar_command(TOOLBAR_LEFT,          FIV_VIEW_COMMAND_ROTATE_LEFT);
+	toolbar_command(TOOLBAR_MIRROR,        FIV_VIEW_COMMAND_MIRROR);
+	toolbar_command(TOOLBAR_RIGHT,         FIV_VIEW_COMMAND_ROTATE_RIGHT);
 	toolbar_connect(TOOLBAR_FULLSCREEN,    G_CALLBACK(toggle_fullscreen));
 	return view_toolbar;
 }
@@ -724,7 +723,7 @@ main(int argc, char *argv[])
 		return 0;
 	}
 	if (show_supported_media_types) {
-		for (char **types = fastiv_io_all_supported_media_types(); *types; )
+		for (char **types = fiv_io_all_supported_media_types(); *types; )
 			g_print("%s\n", *types++);
 		return 0;
 	}
@@ -747,29 +746,29 @@ main(int argc, char *argv[])
 	// XXX: button.flat is too generic, it's only for the view toolbar.
 	// XXX: Similarly, box > separator.horizontal is a temporary hack.
 	// Consider using a #name or a .class here, possibly for a parent widget.
-	const char *style = "@define-color fastiv-tile #3c3c3c; \
-		fastiv-view, fastiv-browser { background: @content_view_bg; } \
-		placessidebar.fastiv .toolbar { padding: 2px 6px; } \
-		placessidebar.fastiv box > separator { margin: 4px 0; } \
+	const char *style = "@define-color fiv-tile #3c3c3c; \
+		fiv-view, fiv-browser { background: @content_view_bg; } \
+		placessidebar.fiv .toolbar { padding: 2px 6px; } \
+		placessidebar.fiv box > separator { margin: 4px 0; } \
 		button.flat { padding-left: 0; padding-right: 0 } \
 		box > separator.horizontal { \
 			background: mix(@insensitive_fg_color, \
 				@insensitive_bg_color, 0.4); margin: 6px 0; \
 		} \
-		fastiv-browser { padding: 5px; } \
-		fastiv-browser.item { \
+		fiv-browser { padding: 5px; } \
+		fiv-browser.item { \
 			border: 1px solid rgba(255, 255, 255, 0.375); \
 			margin: 10px; color: #000; \
 			background: #333; \
 			background-image: \
-				linear-gradient(45deg, @fastiv-tile 26%, transparent 26%), \
-				linear-gradient(-45deg, @fastiv-tile 26%, transparent 26%), \
-				linear-gradient(45deg, transparent 74%, @fastiv-tile 74%), \
-				linear-gradient(-45deg, transparent 74%, @fastiv-tile 74%); \
+				linear-gradient(45deg, @fiv-tile 26%, transparent 26%), \
+				linear-gradient(-45deg, @fiv-tile 26%, transparent 26%), \
+				linear-gradient(45deg, transparent 74%, @fiv-tile 74%), \
+				linear-gradient(-45deg, transparent 74%, @fiv-tile 74%); \
 			background-size: 40px 40px; \
 			background-position: 0 0, 0 20px, 20px -20px, -20px 0px; \
 		} \
-		fastiv-browser.item.symbolic { \
+		fiv-browser.item.symbolic { \
 			border-color: transparent; color: @content_view_bg; \
 			background: @theme_bg_color; background-image: none; \
 		}";
@@ -781,7 +780,7 @@ main(int argc, char *argv[])
 	g_object_unref(provider);
 
 	GtkWidget *view_scroller = gtk_scrolled_window_new(NULL, NULL);
-	g.view = g_object_new(FASTIV_TYPE_VIEW, NULL);
+	g.view = g_object_new(FIV_TYPE_VIEW, NULL);
 	g_signal_connect(g.view, "key-press-event",
 		G_CALLBACK(on_key_press_view), NULL);
 	g_signal_connect(g.view, "button-press-event",
@@ -806,7 +805,7 @@ main(int argc, char *argv[])
 	gtk_widget_show_all(g.view_box);
 
 	g.browser_scroller = gtk_scrolled_window_new(NULL, NULL);
-	g.browser = g_object_new(FASTIV_TYPE_BROWSER, NULL);
+	g.browser = g_object_new(FIV_TYPE_BROWSER, NULL);
 	gtk_widget_set_vexpand(g.browser, TRUE);
 	gtk_widget_set_hexpand(g.browser, TRUE);
 	g_signal_connect(g.browser, "item-activated",
@@ -824,7 +823,7 @@ main(int argc, char *argv[])
 	//  - C-h to filtering,
 	//  - M-Up to going a level above,
 	//  - mayhaps forward the rest to the sidebar, somehow.
-	g.browser_sidebar = g_object_new(FASTIV_TYPE_SIDEBAR, NULL);
+	g.browser_sidebar = g_object_new(FIV_TYPE_SIDEBAR, NULL);
 	g_signal_connect(g.browser_sidebar, "open-location",
 		G_CALLBACK(on_open_location), NULL);
 
@@ -862,8 +861,7 @@ main(int argc, char *argv[])
 	g_signal_connect(funnel, "toggled",
 		G_CALLBACK(on_filtering_toggled), NULL);
 
-	GtkBox *toolbar =
-		fastiv_sidebar_get_toolbar(FASTIV_SIDEBAR(g.browser_sidebar));
+	GtkBox *toolbar = fiv_sidebar_get_toolbar(FIV_SIDEBAR(g.browser_sidebar));
 	gtk_box_pack_start(toolbar, zoom_group, FALSE, FALSE, 0);
 	gtk_box_pack_start(toolbar, funnel, FALSE, FALSE, 0);
 	gtk_widget_set_halign(GTK_WIDGET(toolbar), GTK_ALIGN_CENTER);
@@ -890,7 +888,7 @@ main(int argc, char *argv[])
 		G_CALLBACK(on_window_state_event), NULL);
 	gtk_container_add(GTK_CONTAINER(g.window), g.stack);
 
-	char **types = fastiv_io_all_supported_media_types();
+	char **types = fiv_io_all_supported_media_types();
 	g.supported_globs = extract_mime_globs((const char **) types);
 	g_strfreev(types);
 
diff --git a/fastiv-browser.c b/fiv-browser.c
index 78607ed..7759c3a 100644
--- a/fastiv-browser.c
+++ b/fiv-browser.c
@@ -1,5 +1,5 @@
 //
-// fastiv-browser.c: fast image viewer - filesystem browser widget
+// fiv-browser.c: fast image viewer - filesystem browser widget
 //
 // Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
 //
@@ -18,9 +18,9 @@
 #include <math.h>
 #include <pixman.h>
 
-#include "fastiv-browser.h"
-#include "fastiv-io.h"
-#include "fastiv-view.h"
+#include "fiv-browser.h"
+#include "fiv-io.h"
+#include "fiv-view.h"
 
 // --- Widget ------------------------------------------------------------------
 //                     _________________________________
@@ -38,10 +38,10 @@
 // The glow is actually a glowing margin, the border is rendered in two parts.
 //
 
-struct _FastivBrowser {
+struct _FivBrowser {
 	GtkWidget parent_instance;
 
-	FastivIoThumbnailSize item_size;    ///< Thumbnail size
+	FivIoThumbnailSize item_size;       ///< Thumbnail size
 	int item_height;                    ///< Thumbnail height in pixels
 	int item_spacing;                   ///< Space between items in pixels
 
@@ -99,7 +99,7 @@ row_free(Row *self)
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
 static void
-append_row(FastivBrowser *self, int *y, int x, GArray *items_array)
+append_row(FivBrowser *self, int *y, int x, GArray *items_array)
 {
 	if (self->layouted_rows->len)
 		*y += self->item_spacing;
@@ -117,7 +117,7 @@ append_row(FastivBrowser *self, int *y, int x, GArray *items_array)
 }
 
 static int
-relayout(FastivBrowser *self, int width)
+relayout(FivBrowser *self, int width)
 {
 	GtkWidget *widget = GTK_WIDGET(self);
 	GtkStyleContext *style = gtk_widget_get_style_context(widget);
@@ -161,7 +161,7 @@ relayout(FastivBrowser *self, int width)
 }
 
 static void
-draw_outer_border(FastivBrowser *self, cairo_t *cr, int width, int height)
+draw_outer_border(FivBrowser *self, cairo_t *cr, int width, int height)
 {
 	int offset_x = cairo_image_surface_get_width(self->glow);
 	int offset_y = cairo_image_surface_get_height(self->glow);
@@ -197,7 +197,7 @@ draw_outer_border(FastivBrowser *self, cairo_t *cr, int width, int height)
 }
 
 static GdkRectangle
-item_extents(FastivBrowser *self, const Item *item, const Row *row)
+item_extents(FivBrowser *self, const Item *item, const Row *row)
 {
 	int width = cairo_image_surface_get_width(item->entry->thumbnail);
 	int height = cairo_image_surface_get_height(item->entry->thumbnail);
@@ -210,7 +210,7 @@ item_extents(FastivBrowser *self, const Item *item, const Row *row)
 }
 
 static const Entry *
-entry_at(FastivBrowser *self, int x, int y)
+entry_at(FivBrowser *self, int x, int y)
 {
 	for (guint i = 0; i < self->layouted_rows->len; i++) {
 		const Row *row = &g_array_index(self->layouted_rows, Row, i);
@@ -227,7 +227,7 @@ entry_at(FastivBrowser *self, int x, int y)
 }
 
 static void
-draw_row(FastivBrowser *self, cairo_t *cr, const Row *row)
+draw_row(FivBrowser *self, cairo_t *cr, const Row *row)
 {
 	GtkStyleContext *style = gtk_widget_get_style_context(GTK_WIDGET(self));
 	gtk_style_context_save(style);
@@ -350,10 +350,10 @@ entry_add_thumbnail(gpointer data, gpointer user_data)
 	g_clear_object(&self->icon);
 	g_clear_pointer(&self->thumbnail, cairo_surface_destroy);
 
-	FastivBrowser *browser = FASTIV_BROWSER(user_data);
+	FivBrowser *browser = FIV_BROWSER(user_data);
 	GFile *file = g_file_new_for_uri(self->uri);
 	self->thumbnail = rescale_thumbnail(
-		fastiv_io_lookup_thumbnail(file, browser->item_size),
+		fiv_io_lookup_thumbnail(file, browser->item_size),
 		browser->item_height);
 	if (self->thumbnail)
 		goto out;
@@ -375,7 +375,7 @@ out:
 }
 
 static void
-materialize_icon(FastivBrowser *self, Entry *entry)
+materialize_icon(FivBrowser *self, Entry *entry)
 {
 	if (!entry->icon)
 		return;
@@ -419,7 +419,7 @@ materialize_icon(FastivBrowser *self, Entry *entry)
 }
 
 static void
-reload_thumbnails(FastivBrowser *self)
+reload_thumbnails(FivBrowser *self)
 {
 	GThreadPool *pool = g_thread_pool_new(
 		entry_add_thumbnail, self, g_get_num_processors(), FALSE, NULL);
@@ -597,9 +597,9 @@ show_context_menu(GtkWidget *widget, const char *uri)
 // --- Boilerplate -------------------------------------------------------------
 
 // TODO(p): For proper navigation, we need to implement GtkScrollable.
-G_DEFINE_TYPE_EXTENDED(FastivBrowser, fastiv_browser, GTK_TYPE_WIDGET, 0,
+G_DEFINE_TYPE_EXTENDED(FivBrowser, fiv_browser, GTK_TYPE_WIDGET, 0,
 	/* G_IMPLEMENT_INTERFACE(GTK_TYPE_SCROLLABLE,
-		fastiv_browser_scrollable_init) */)
+		fiv_browser_scrollable_init) */)
 
 enum {
 	PROP_THUMBNAIL_SIZE = 1,
@@ -617,22 +617,22 @@ enum {
 static guint browser_signals[LAST_SIGNAL];
 
 static void
-fastiv_browser_finalize(GObject *gobject)
+fiv_browser_finalize(GObject *gobject)
 {
-	FastivBrowser *self = FASTIV_BROWSER(gobject);
+	FivBrowser *self = FIV_BROWSER(gobject);
 	g_array_free(self->entries, TRUE);
 	g_array_free(self->layouted_rows, TRUE);
 	cairo_surface_destroy(self->glow);
 	g_clear_object(&self->pointer);
 
-	G_OBJECT_CLASS(fastiv_browser_parent_class)->finalize(gobject);
+	G_OBJECT_CLASS(fiv_browser_parent_class)->finalize(gobject);
 }
 
 static void
-fastiv_browser_get_property(
+fiv_browser_get_property(
 	GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
 {
-	FastivBrowser *self = FASTIV_BROWSER(object);
+	FivBrowser *self = FIV_BROWSER(object);
 	switch (property_id) {
 	case PROP_THUMBNAIL_SIZE:
 		g_value_set_enum(value, self->item_size);
@@ -643,15 +643,14 @@ fastiv_browser_get_property(
 }
 
 static void
-set_item_size(FastivBrowser *self, FastivIoThumbnailSize size)
+set_item_size(FivBrowser *self, FivIoThumbnailSize size)
 {
-	if (size < FASTIV_IO_THUMBNAIL_SIZE_MIN ||
-		size > FASTIV_IO_THUMBNAIL_SIZE_MAX)
+	if (size < FIV_IO_THUMBNAIL_SIZE_MIN || size > FIV_IO_THUMBNAIL_SIZE_MAX)
 		return;
 
 	if (size != self->item_size) {
 		self->item_size = size;
-		self->item_height = fastiv_io_thumbnail_sizes[self->item_size].size;
+		self->item_height = fiv_io_thumbnail_sizes[self->item_size].size;
 		reload_thumbnails(self);
 
 		g_object_notify_by_pspec(
@@ -660,10 +659,10 @@ set_item_size(FastivBrowser *self, FastivIoThumbnailSize size)
 }
 
 static void
-fastiv_browser_set_property(
+fiv_browser_set_property(
 	GObject *object, guint property_id, const GValue *value, GParamSpec *pspec)
 {
-	FastivBrowser *self = FASTIV_BROWSER(object);
+	FivBrowser *self = FIV_BROWSER(object);
 	switch (property_id) {
 	case PROP_THUMBNAIL_SIZE:
 		set_item_size(self, g_value_get_enum(value));
@@ -674,35 +673,33 @@ fastiv_browser_set_property(
 }
 
 static GtkSizeRequestMode
-fastiv_browser_get_request_mode(G_GNUC_UNUSED GtkWidget *widget)
+fiv_browser_get_request_mode(G_GNUC_UNUSED GtkWidget *widget)
 {
 	return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH;
 }
 
 static void
-fastiv_browser_get_preferred_width(
-	GtkWidget *widget, gint *minimum, gint *natural)
+fiv_browser_get_preferred_width(GtkWidget *widget, gint *minimum, gint *natural)
 {
-	FastivBrowser *self = FASTIV_BROWSER(widget);
+	FivBrowser *self = FIV_BROWSER(widget);
 	GtkStyleContext *style = gtk_widget_get_style_context(widget);
 
 	GtkBorder padding = {};
 	gtk_style_context_get_padding(style, GTK_STATE_FLAG_NORMAL, &padding);
-	*minimum = *natural =
-		g_permitted_width_multiplier * self->item_height +
+	*minimum = *natural = g_permitted_width_multiplier * self->item_height +
 		padding.left + 2 * self->item_border_x + padding.right;
 }
 
 static void
-fastiv_browser_get_preferred_height_for_width(
+fiv_browser_get_preferred_height_for_width(
 	GtkWidget *widget, gint width, gint *minimum, gint *natural)
 {
 	// XXX: This is rather ugly, the caller is only asking.
-	*minimum = *natural = relayout(FASTIV_BROWSER(widget), width);
+	*minimum = *natural = relayout(FIV_BROWSER(widget), width);
 }
 
 static void
-fastiv_browser_realize(GtkWidget *widget)
+fiv_browser_realize(GtkWidget *widget)
 {
 	GtkAllocation allocation;
 	gtk_widget_get_allocation(widget, &allocation);
@@ -720,8 +717,7 @@ fastiv_browser_realize(GtkWidget *widget)
 
 		.visual = gtk_widget_get_visual(widget),
 		.event_mask = gtk_widget_get_events(widget) | GDK_KEY_PRESS_MASK |
-			GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK |
-			GDK_SCROLL_MASK,
+			GDK_POINTER_MOTION_MASK | GDK_BUTTON_PRESS_MASK | GDK_SCROLL_MASK,
 	};
 
 	// We need this window to receive input events at all.
@@ -732,25 +728,25 @@ fastiv_browser_realize(GtkWidget *widget)
 	gtk_widget_set_window(widget, window);
 	gtk_widget_set_realized(widget, TRUE);
 
-	FastivBrowser *self = FASTIV_BROWSER(widget);
+	FivBrowser *self = FIV_BROWSER(widget);
 	g_clear_object(&self->pointer);
 	self->pointer =
 		gdk_cursor_new_from_name(gdk_window_get_display(window), "pointer");
 }
 
 static void
-fastiv_browser_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
+fiv_browser_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
 {
-	GTK_WIDGET_CLASS(fastiv_browser_parent_class)
+	GTK_WIDGET_CLASS(fiv_browser_parent_class)
 		->size_allocate(widget, allocation);
 
-	relayout(FASTIV_BROWSER(widget), allocation->width);
+	relayout(FIV_BROWSER(widget), allocation->width);
 }
 
 static gboolean
-fastiv_browser_draw(GtkWidget *widget, cairo_t *cr)
+fiv_browser_draw(GtkWidget *widget, cairo_t *cr)
 {
-	FastivBrowser *self = FASTIV_BROWSER(widget);
+	FivBrowser *self = FIV_BROWSER(widget);
 	if (!gtk_cairo_should_draw_window(cr, gtk_widget_get_window(widget)))
 		return TRUE;
 
@@ -787,12 +783,12 @@ open_entry(GtkWidget *self, const Entry *entry, gboolean new_window)
 }
 
 static gboolean
-fastiv_browser_button_press_event(GtkWidget *widget, GdkEventButton *event)
+fiv_browser_button_press_event(GtkWidget *widget, GdkEventButton *event)
 {
-	GTK_WIDGET_CLASS(fastiv_browser_parent_class)
+	GTK_WIDGET_CLASS(fiv_browser_parent_class)
 		->button_press_event(widget, event);
 
-	FastivBrowser *self = FASTIV_BROWSER(widget);
+	FivBrowser *self = FIV_BROWSER(widget);
 	if (event->type != GDK_BUTTON_PRESS)
 		return FALSE;
 
@@ -828,12 +824,12 @@ fastiv_browser_button_press_event(GtkWidget *widget, GdkEventButton *event)
 }
 
 gboolean
-fastiv_browser_motion_notify_event(GtkWidget *widget, GdkEventMotion *event)
+fiv_browser_motion_notify_event(GtkWidget *widget, GdkEventMotion *event)
 {
-	GTK_WIDGET_CLASS(fastiv_browser_parent_class)
+	GTK_WIDGET_CLASS(fiv_browser_parent_class)
 		->motion_notify_event(widget, event);
 
-	FastivBrowser *self = FASTIV_BROWSER(widget);
+	FivBrowser *self = FIV_BROWSER(widget);
 	if (event->state != 0)
 		return FALSE;
 
@@ -844,9 +840,9 @@ fastiv_browser_motion_notify_event(GtkWidget *widget, GdkEventMotion *event)
 }
 
 static gboolean
-fastiv_browser_scroll_event(GtkWidget *widget, GdkEventScroll *event)
+fiv_browser_scroll_event(GtkWidget *widget, GdkEventScroll *event)
 {
-	FastivBrowser *self = FASTIV_BROWSER(widget);
+	FivBrowser *self = FIV_BROWSER(widget);
 	if ((event->state & gtk_accelerator_get_default_mod_mask()) !=
 		GDK_CONTROL_MASK)
 		return FALSE;
@@ -866,10 +862,10 @@ fastiv_browser_scroll_event(GtkWidget *widget, GdkEventScroll *event)
 }
 
 static gboolean
-fastiv_browser_query_tooltip(GtkWidget *widget, gint x, gint y,
+fiv_browser_query_tooltip(GtkWidget *widget, gint x, gint y,
 	G_GNUC_UNUSED gboolean keyboard_tooltip, GtkTooltip *tooltip)
 {
-	FastivBrowser *self = FASTIV_BROWSER(widget);
+	FivBrowser *self = FIV_BROWSER(widget);
 	const Entry *entry = entry_at(self, x, y);
 	if (!entry)
 		return FALSE;
@@ -889,11 +885,11 @@ fastiv_browser_query_tooltip(GtkWidget *widget, gint x, gint y,
 }
 
 static void
-fastiv_browser_style_updated(GtkWidget *widget)
+fiv_browser_style_updated(GtkWidget *widget)
 {
-	GTK_WIDGET_CLASS(fastiv_browser_parent_class)->style_updated(widget);
+	GTK_WIDGET_CLASS(fiv_browser_parent_class)->style_updated(widget);
 
-	FastivBrowser *self = FASTIV_BROWSER(widget);
+	FivBrowser *self = FIV_BROWSER(widget);
 	GtkStyleContext *style = gtk_widget_get_style_context(widget);
 	GtkBorder border = {}, margin = {};
 
@@ -931,8 +927,7 @@ fastiv_browser_style_updated(GtkWidget *widget)
 		return;
 	}
 
-	self->glow =
-		cairo_image_surface_create(CAIRO_FORMAT_A8, glow_w, glow_h);
+	self->glow = cairo_image_surface_create(CAIRO_FORMAT_A8, glow_w, glow_h);
 	unsigned char *data = cairo_image_surface_get_data(self->glow);
 	int stride = cairo_image_surface_get_stride(self->glow);
 
@@ -954,16 +949,16 @@ fastiv_browser_style_updated(GtkWidget *widget)
 }
 
 static void
-fastiv_browser_class_init(FastivBrowserClass *klass)
+fiv_browser_class_init(FivBrowserClass *klass)
 {
 	GObjectClass *object_class = G_OBJECT_CLASS(klass);
-	object_class->finalize = fastiv_browser_finalize;
-	object_class->get_property = fastiv_browser_get_property;
-	object_class->set_property = fastiv_browser_set_property;
+	object_class->finalize = fiv_browser_finalize;
+	object_class->get_property = fiv_browser_get_property;
+	object_class->set_property = fiv_browser_set_property;
 
 	browser_properties[PROP_THUMBNAIL_SIZE] = g_param_spec_enum(
 		"thumbnail-size", "Thumbnail size", "The thumbnail height to use",
-		FASTIV_TYPE_IO_THUMBNAIL_SIZE, FASTIV_IO_THUMBNAIL_SIZE_NORMAL,
+		FIV_TYPE_IO_THUMBNAIL_SIZE, FIV_IO_THUMBNAIL_SIZE_NORMAL,
 		G_PARAM_READWRITE);
 	g_object_class_install_properties(
 		object_class, N_PROPERTIES, browser_properties);
@@ -973,18 +968,18 @@ fastiv_browser_class_init(FastivBrowserClass *klass)
 		G_TYPE_NONE, 2, G_TYPE_FILE, GTK_TYPE_PLACES_OPEN_FLAGS);
 
 	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
-	widget_class->get_request_mode = fastiv_browser_get_request_mode;
-	widget_class->get_preferred_width = fastiv_browser_get_preferred_width;
+	widget_class->get_request_mode = fiv_browser_get_request_mode;
+	widget_class->get_preferred_width = fiv_browser_get_preferred_width;
 	widget_class->get_preferred_height_for_width =
-		fastiv_browser_get_preferred_height_for_width;
-	widget_class->realize = fastiv_browser_realize;
-	widget_class->draw = fastiv_browser_draw;
-	widget_class->size_allocate = fastiv_browser_size_allocate;
-	widget_class->button_press_event = fastiv_browser_button_press_event;
-	widget_class->motion_notify_event = fastiv_browser_motion_notify_event;
-	widget_class->scroll_event = fastiv_browser_scroll_event;
-	widget_class->query_tooltip = fastiv_browser_query_tooltip;
-	widget_class->style_updated = fastiv_browser_style_updated;
+		fiv_browser_get_preferred_height_for_width;
+	widget_class->realize = fiv_browser_realize;
+	widget_class->draw = fiv_browser_draw;
+	widget_class->size_allocate = fiv_browser_size_allocate;
+	widget_class->button_press_event = fiv_browser_button_press_event;
+	widget_class->motion_notify_event = fiv_browser_motion_notify_event;
+	widget_class->scroll_event = fiv_browser_scroll_event;
+	widget_class->query_tooltip = fiv_browser_query_tooltip;
+	widget_class->style_updated = fiv_browser_style_updated;
 
 	// Could be split to also-idiomatic row-spacing/column-spacing properties.
 	// The GParamSpec is sinked by this call.
@@ -994,11 +989,11 @@ fastiv_browser_class_init(FastivBrowserClass *klass)
 
 	// TODO(p): Later override "screen_changed", recreate Pango layouts there,
 	// if we get to have any, or otherwise reflect DPI changes.
-	gtk_widget_class_set_css_name(widget_class, "fastiv-browser");
+	gtk_widget_class_set_css_name(widget_class, "fiv-browser");
 }
 
 static void
-fastiv_browser_init(FastivBrowser *self)
+fiv_browser_init(FivBrowser *self)
 {
 	gtk_widget_set_can_focus(GTK_WIDGET(self), TRUE);
 	gtk_widget_set_has_tooltip(GTK_WIDGET(self), TRUE);
@@ -1008,7 +1003,7 @@ fastiv_browser_init(FastivBrowser *self)
 	self->layouted_rows = g_array_new(FALSE, TRUE, sizeof(Row));
 	g_array_set_clear_func(self->layouted_rows, (GDestroyNotify) row_free);
 
-	set_item_size(self, FASTIV_IO_THUMBNAIL_SIZE_NORMAL);
+	set_item_size(self, FIV_IO_THUMBNAIL_SIZE_NORMAL);
 	self->selected = -1;
 	self->glow = cairo_image_surface_create(CAIRO_FORMAT_A1, 0, 0);
 
@@ -1025,15 +1020,15 @@ entry_compare(gconstpointer a, gconstpointer b)
 	const Entry *entry2 = b;
 	GFile *location1 = g_file_new_for_uri(entry1->uri);
 	GFile *location2 = g_file_new_for_uri(entry2->uri);
-	gint result = fastiv_io_filecmp(location1, location2);
+	gint result = fiv_io_filecmp(location1, location2);
 	g_object_unref(location1);
 	g_object_unref(location2);
 	return result;
 }
 
 void
-fastiv_browser_load(
-	FastivBrowser *self, FastivBrowserFilterCallback cb, const char *path)
+fiv_browser_load(
+	FivBrowser *self, FivBrowserFilterCallback cb, const char *path)
 {
 	g_array_set_size(self->entries, 0);
 	g_array_set_size(self->layouted_rows, 0);
diff --git a/fastiv-browser.h b/fiv-browser.h
index 66d75ee..613728c 100644
--- a/fastiv-browser.h
+++ b/fiv-browser.h
@@ -1,5 +1,5 @@
 //
-// fastiv-browser.h: fast image viewer - filesystem browser widget
+// fiv-browser.h: fast image viewer - filesystem browser widget
 //
 // Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
 //
@@ -19,10 +19,10 @@
 
 #include <gtk/gtk.h>
 
-#define FASTIV_TYPE_BROWSER (fastiv_browser_get_type())
-G_DECLARE_FINAL_TYPE(FastivBrowser, fastiv_browser, FASTIV, BROWSER, GtkWidget)
+#define FIV_TYPE_BROWSER (fiv_browser_get_type())
+G_DECLARE_FINAL_TYPE(FivBrowser, fiv_browser, FIV, BROWSER, GtkWidget)
 
-typedef gboolean (*FastivBrowserFilterCallback) (const char *);
+typedef gboolean (*FivBrowserFilterCallback) (const char *);
 
-void fastiv_browser_load(
-	FastivBrowser *self, FastivBrowserFilterCallback cb, const char *path);
+void fiv_browser_load(
+	FivBrowser *self, FivBrowserFilterCallback cb, const char *path);
diff --git a/fastiv-io-benchmark.c b/fiv-io-benchmark.c
index 250b5c2..d70d1c9 100644
--- a/fastiv-io-benchmark.c
+++ b/fiv-io-benchmark.c
@@ -1,5 +1,5 @@
 //
-// fastiv-io-benchmark.c: see if we're worth the name
+// fiv-io-benchmark.c: see if we're worth the name
 //
 // Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
 //
@@ -15,11 +15,11 @@
 // CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 //
 
-#include <gdk/gdk.h>
 #include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gdk/gdk.h>
 #include <time.h>
 
-#include "fastiv-io.h"
+#include "fiv-io.h"
 
 static double
 timestamp(void)
@@ -33,7 +33,7 @@ static void
 one_file(const char *filename)
 {
 	double since_us = timestamp();
-	cairo_surface_t *loaded_by_us = fastiv_io_open(filename, NULL);
+	cairo_surface_t *loaded_by_us = fiv_io_open(filename, NULL);
 	if (!loaded_by_us)
 		return;
 
diff --git a/fastiv-io.c b/fiv-io.c
index e8d2588..568c7c1 100644
--- a/fastiv-io.c
+++ b/fiv-io.c
@@ -1,5 +1,5 @@
 //
-// fastiv-io.c: image operations
+// fiv-io.c: image operations
 //
 // Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
 //
@@ -47,8 +47,8 @@
 #include <tiffio.h>
 #endif  // HAVE_LIBTIFF
 #ifdef HAVE_GDKPIXBUF
-#include <gdk/gdk.h>
 #include <gdk-pixbuf/gdk-pixbuf.h>
+#include <gdk/gdk.h>
 #endif  // HAVE_GDKPIXBUF
 
 #define WUFFS_IMPLEMENTATION
@@ -64,17 +64,17 @@
 #define WUFFS_CONFIG__MODULE__ZLIB
 #include "wuffs-mirror-release-c/release/c/wuffs-v0.3.c"
 
+#include "fiv-io.h"
 #include "xdg.h"
-#include "fastiv-io.h"
 
 #if CAIRO_VERSION >= 11702 && X11_ACTUALLY_SUPPORTS_RGBA128F_OR_WE_USE_OPENGL
-#define FASTIV_CAIRO_RGBA128F
+#define FIV_CAIRO_RGBA128F
 #endif
 
 // A subset of shared-mime-info that produces an appropriate list of
 // file extensions. Chiefly motivated by the suckiness of raw photo formats:
 // someone else will maintain the list of file extensions for us.
-const char *fastiv_io_supported_media_types[] = {
+const char *fiv_io_supported_media_types[] = {
 	"image/bmp",
 	"image/gif",
 	"image/png",
@@ -103,10 +103,10 @@ const char *fastiv_io_supported_media_types[] = {
 };
 
 char **
-fastiv_io_all_supported_media_types(void)
+fiv_io_all_supported_media_types(void)
 {
 	GPtrArray *types = g_ptr_array_new();
-	for (const char **p = fastiv_io_supported_media_types; *p; p++)
+	for (const char **p = fiv_io_supported_media_types; *p; p++)
 		g_ptr_array_add(types, g_strdup(*p));
 
 #ifdef HAVE_GDKPIXBUF
@@ -126,18 +126,18 @@ fastiv_io_all_supported_media_types(void)
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
-#define FASTIV_IO_ERROR fastiv_io_error_quark()
+#define FIV_IO_ERROR fiv_io_error_quark()
 
-G_DEFINE_QUARK(fastiv-io-error-quark, fastiv_io_error)
+G_DEFINE_QUARK(fiv-io-error-quark, fiv_io_error)
 
-enum FastivIoError {
-	FASTIV_IO_ERROR_OPEN
+enum FivIoError {
+	FIV_IO_ERROR_OPEN
 };
 
 static void
 set_error(GError **error, const char *message)
 {
-	g_set_error_literal(error, FASTIV_IO_ERROR, FASTIV_IO_ERROR_OPEN, message);
+	g_set_error_literal(error, FIV_IO_ERROR, FIV_IO_ERROR_OPEN, message);
 }
 
 static bool
@@ -148,11 +148,10 @@ try_append_page(cairo_surface_t *surface, cairo_surface_t **result,
 		return false;
 
 	if (*result) {
-		cairo_surface_set_user_data(*result_tail,
-			&fastiv_io_key_page_next, surface,
-			(cairo_destroy_func_t) cairo_surface_destroy);
-		cairo_surface_set_user_data(surface,
-			&fastiv_io_key_page_previous, *result_tail, NULL);
+		cairo_surface_set_user_data(*result_tail, &fiv_io_key_page_next,
+			surface, (cairo_destroy_func_t) cairo_surface_destroy);
+		cairo_surface_set_user_data(
+			surface, &fiv_io_key_page_previous, *result_tail, NULL);
 		*result_tail = surface;
 	} else {
 		*result = *result_tail = surface;
@@ -224,8 +223,7 @@ pull_metadata(wuffs_base__image_decoder *dec, wuffs_base__io_buffer *src,
 				goto fail;
 		}
 
-		g_byte_array_append(array,
-			wuffs_base__io_buffer__reader_pointer(&dst),
+		g_byte_array_append(array, wuffs_base__io_buffer__reader_pointer(&dst),
 			wuffs_base__io_buffer__reader_length(&dst));
 		if (wuffs_base__status__is_ok(&status))
 			return g_byte_array_free_to_bytes(array);
@@ -410,26 +408,26 @@ load_wuffs_frame(struct load_wuffs_frame_context *ctx, GError **error)
 	}
 
 	if (ctx->meta_exif)
-		cairo_surface_set_user_data(surface, &fastiv_io_key_exif,
+		cairo_surface_set_user_data(surface, &fiv_io_key_exif,
 			g_bytes_ref(ctx->meta_exif), (cairo_destroy_func_t) g_bytes_unref);
 	if (ctx->meta_iccp)
-		cairo_surface_set_user_data(surface, &fastiv_io_key_icc,
+		cairo_surface_set_user_data(surface, &fiv_io_key_icc,
 			g_bytes_ref(ctx->meta_iccp), (cairo_destroy_func_t) g_bytes_unref);
 	if (ctx->meta_xmp)
-		cairo_surface_set_user_data(surface, &fastiv_io_key_xmp,
+		cairo_surface_set_user_data(surface, &fiv_io_key_xmp,
 			g_bytes_ref(ctx->meta_xmp), (cairo_destroy_func_t) g_bytes_unref);
 
-	cairo_surface_set_user_data(surface, &fastiv_io_key_loops,
+	cairo_surface_set_user_data(surface, &fiv_io_key_loops,
 		(void *) (uintptr_t) wuffs_base__image_decoder__num_animation_loops(
 			ctx->dec), NULL);
-	cairo_surface_set_user_data(surface, &fastiv_io_key_frame_duration,
+	cairo_surface_set_user_data(surface, &fiv_io_key_frame_duration,
 		(void *) (intptr_t) (wuffs_base__frame_config__duration(&fc) /
 			WUFFS_BASE__FLICKS_PER_MILLISECOND), NULL);
 
-	cairo_surface_set_user_data(surface, &fastiv_io_key_frame_previous,
-		ctx->result_tail, NULL);
+	cairo_surface_set_user_data(
+		surface, &fiv_io_key_frame_previous, ctx->result_tail, NULL);
 	if (ctx->result_tail)
-		cairo_surface_set_user_data(ctx->result_tail, &fastiv_io_key_frame_next,
+		cairo_surface_set_user_data(ctx->result_tail, &fiv_io_key_frame_next,
 			surface, (cairo_destroy_func_t) cairo_surface_destroy);
 	else
 		ctx->result = surface;
@@ -536,9 +534,9 @@ open_wuffs(
 
 	// Cairo doesn't support transparency with RGB30, so no premultiplication.
 	ctx.pack_16_10 = opaque && (bpp > 24 || (bpp < 24 && bpp > 8));
-#ifdef FASTIV_CAIRO_RGBA128F
+#ifdef FIV_CAIRO_RGBA128F
 	ctx.expand_16_float = !opaque && (bpp > 24 || (bpp < 24 && bpp > 8));
-#endif  // FASTIV_CAIRO_RGBA128F
+#endif  // FIV_CAIRO_RGBA128F
 
 	// In Wuffs, /doc/note/pixel-formats.md declares "memory order", which,
 	// for our purposes, means big endian, and BGRA results in 32-bit ARGB
@@ -553,12 +551,12 @@ open_wuffs(
 	// Pre-multiplied alpha is used." CAIRO_FORMAT_RGB{24,30} are analogous.
 	ctx.cairo_format = CAIRO_FORMAT_ARGB32;
 
-#ifdef FASTIV_CAIRO_RGBA128F
+#ifdef FIV_CAIRO_RGBA128F
 	if (ctx.expand_16_float) {
 		wuffs_format = WUFFS_BASE__PIXEL_FORMAT__BGRA_NONPREMUL_4X16LE;
 		ctx.cairo_format = CAIRO_FORMAT_RGBA128F;
 	} else
-#endif  // FASTIV_CAIRO_RGBA128F
+#endif  // FIV_CAIRO_RGBA128F
 	if (ctx.pack_16_10) {
 		// TODO(p): Make Wuffs support A2RGB30 as a destination format;
 		// in general, 16-bit depth swizzlers are stubbed.
@@ -589,8 +587,8 @@ open_wuffs(
 
 	// Wrap the chain around, since our caller receives only one pointer.
 	if (ctx.result)
-		cairo_surface_set_user_data(ctx.result, &fastiv_io_key_frame_previous,
-			ctx.result_tail, NULL);
+		cairo_surface_set_user_data(
+			ctx.result, &fiv_io_key_frame_previous, ctx.result_tail, NULL);
 
 fail:
 	free(ctx.workbuf.ptr);
@@ -716,14 +714,14 @@ parse_jpeg_metadata(cairo_surface_t *surface, const gchar *data, gsize len)
 	}
 
 	if (exif->len)
-		cairo_surface_set_user_data(surface, &fastiv_io_key_exif,
+		cairo_surface_set_user_data(surface, &fiv_io_key_exif,
 			g_byte_array_free_to_bytes(exif),
 			(cairo_destroy_func_t) g_bytes_unref);
 	else
 		g_byte_array_free(exif, TRUE);
 
 	if (icc_done)
-		cairo_surface_set_user_data(surface, &fastiv_io_key_icc,
+		cairo_surface_set_user_data(surface, &fiv_io_key_icc,
 			g_byte_array_free_to_bytes(icc),
 			(cairo_destroy_func_t) g_bytes_unref);
 	else
@@ -900,7 +898,7 @@ open_libraw(const gchar *data, gsize len, GError **error)
 #endif  // HAVE_LIBRAW ---------------------------------------------------------
 #ifdef HAVE_LIBRSVG  // --------------------------------------------------------
 
-#ifdef FASTIV_RSVG_DEBUG
+#ifdef FIV_RSVG_DEBUG
 #include <cairo/cairo-script.h>
 #include <cairo/cairo-svg.h>
 #endif
@@ -911,8 +909,8 @@ open_librsvg(const gchar *data, gsize len, const gchar *path, GError **error)
 {
 	GFile *base_file = g_file_new_for_path(path);
 	GInputStream *is = g_memory_input_stream_new_from_data(data, len, NULL);
-	RsvgHandle *handle = rsvg_handle_new_from_stream_sync(is, base_file,
-		RSVG_HANDLE_FLAG_KEEP_IMAGE_DATA, NULL, error);
+	RsvgHandle *handle = rsvg_handle_new_from_stream_sync(
+		is, base_file, RSVG_HANDLE_FLAG_KEEP_IMAGE_DATA, NULL, error);
 	g_object_unref(base_file);
 	g_object_unref(is);
 	if (!handle)
@@ -931,8 +929,8 @@ open_librsvg(const gchar *data, gsize len, const gchar *path, GError **error)
 #endif
 		RsvgRectangle viewbox = {};
 		gboolean has_viewport = FALSE;
-		rsvg_handle_get_intrinsic_dimensions(handle, NULL, NULL, NULL, NULL,
-			&has_viewport, &viewbox);
+		rsvg_handle_get_intrinsic_dimensions(
+			handle, NULL, NULL, NULL, NULL, &has_viewport, &viewbox);
 		if (!has_viewport) {
 			set_error(error, "cannot compute pixel dimensions");
 			g_object_unref(handle);
@@ -948,7 +946,7 @@ open_librsvg(const gchar *data, gsize len, const gchar *path, GError **error)
 	cairo_surface_t *surface =
 		cairo_recording_surface_create(CAIRO_CONTENT_COLOR_ALPHA, &extents);
 
-#ifdef FASTIV_RSVG_DEBUG
+#ifdef FIV_RSVG_DEBUG
 	cairo_device_t *script = cairo_script_create("cairo.script");
 	cairo_surface_t *tee =
 		cairo_script_surface_create_for_target(script, surface);
@@ -970,7 +968,7 @@ open_librsvg(const gchar *data, gsize len, const gchar *path, GError **error)
 	cairo_destroy(cr);
 	g_object_unref(handle);
 
-#ifdef FASTIV_RSVG_DEBUG
+#ifdef FIV_RSVG_DEBUG
 	cairo_surface_t *svg = cairo_svg_surface_create("cairo.svg", w, h);
 	cr = cairo_create(svg);
 	cairo_set_source_surface(cr, surface, 0, 0);
@@ -996,16 +994,16 @@ open_librsvg(const gchar *data, gsize len, const gchar *path, GError **error)
 
 // fmemopen is part of POSIX-1.2008, this exercise is technically unnecessary.
 // libXcursor checks for EOF rather than -1, it may eat your hamster.
-struct fastiv_io_xcursor {
+struct fiv_io_xcursor {
 	XcursorFile parent;
 	unsigned char *data;
 	long position, len;
 };
 
 static int
-fastiv_io_xcursor_read(XcursorFile *file, unsigned char *buf, int len)
+fiv_io_xcursor_read(XcursorFile *file, unsigned char *buf, int len)
 {
-	struct fastiv_io_xcursor *fix = (struct fastiv_io_xcursor *) file;
+	struct fiv_io_xcursor *fix = (struct fiv_io_xcursor *) file;
 	if (fix->position < 0 || fix->position > fix->len) {
 		errno = EOVERFLOW;
 		return -1;
@@ -1021,7 +1019,7 @@ fastiv_io_xcursor_read(XcursorFile *file, unsigned char *buf, int len)
 }
 
 static int
-fastiv_io_xcursor_write(G_GNUC_UNUSED XcursorFile *file,
+fiv_io_xcursor_write(G_GNUC_UNUSED XcursorFile *file,
 	G_GNUC_UNUSED unsigned char *buf, G_GNUC_UNUSED int len)
 {
 	errno = EBADF;
@@ -1029,9 +1027,9 @@ fastiv_io_xcursor_write(G_GNUC_UNUSED XcursorFile *file,
 }
 
 static int
-fastiv_io_xcursor_seek(XcursorFile *file, long offset, int whence)
+fiv_io_xcursor_seek(XcursorFile *file, long offset, int whence)
 {
-	struct fastiv_io_xcursor *fix = (struct fastiv_io_xcursor *) file;
+	struct fiv_io_xcursor *fix = (struct fiv_io_xcursor *) file;
 	switch (whence) {
 	case SEEK_SET:
 		fix->position = offset;
@@ -1054,11 +1052,11 @@ fastiv_io_xcursor_seek(XcursorFile *file, long offset, int whence)
 	return fix->position;
 }
 
-static const XcursorFile fastiv_io_xcursor_adaptor = {
+static const XcursorFile fiv_io_xcursor_adaptor = {
 	.closure = NULL,
-	.read    = fastiv_io_xcursor_read,
-	.write   = fastiv_io_xcursor_write,
-	.seek    = fastiv_io_xcursor_seek,
+	.read    = fiv_io_xcursor_read,
+	.write   = fiv_io_xcursor_write,
+	.seek    = fiv_io_xcursor_seek,
 };
 
 static cairo_surface_t *
@@ -1069,8 +1067,8 @@ open_xcursor(const gchar *data, gsize len, GError **error)
 		return NULL;
 	}
 
-	struct fastiv_io_xcursor file = {
-		.parent = fastiv_io_xcursor_adaptor,
+	struct fiv_io_xcursor file = {
+		.parent = fiv_io_xcursor_adaptor,
 		.data = (unsigned char *) data,
 		.position = 0,
 		.len = len,
@@ -1094,24 +1092,22 @@ open_xcursor(const gchar *data, gsize len, GError **error)
 		cairo_surface_t *surface = cairo_image_surface_create_for_data(
 			(unsigned char *) image->pixels, CAIRO_FORMAT_ARGB32,
 			image->width, image->height, image->width * sizeof *image->pixels);
-		cairo_surface_set_user_data(surface, &fastiv_io_key_frame_duration,
+		cairo_surface_set_user_data(surface, &fiv_io_key_frame_duration,
 			(void *) (intptr_t) image->delay, NULL);
 
 		if (pages && image->size == last_nominal) {
-			cairo_surface_set_user_data(surface,
-				&fastiv_io_key_frame_previous, frames_tail, NULL);
-			cairo_surface_set_user_data(frames_tail,
-				&fastiv_io_key_frame_next, surface,
-				(cairo_destroy_func_t) cairo_surface_destroy);
+			cairo_surface_set_user_data(
+				surface, &fiv_io_key_frame_previous, frames_tail, NULL);
+			cairo_surface_set_user_data(frames_tail, &fiv_io_key_frame_next,
+				surface, (cairo_destroy_func_t) cairo_surface_destroy);
 		} else if (frames_head) {
-			cairo_surface_set_user_data(frames_head,
-				&fastiv_io_key_frame_previous, frames_tail, NULL);
-
-			cairo_surface_set_user_data(frames_head,
-				&fastiv_io_key_page_next, surface,
-				(cairo_destroy_func_t) cairo_surface_destroy);
-			cairo_surface_set_user_data(surface,
-				&fastiv_io_key_page_previous, frames_head, NULL);
+			cairo_surface_set_user_data(
+				frames_head, &fiv_io_key_frame_previous, frames_tail, NULL);
+
+			cairo_surface_set_user_data(frames_head, &fiv_io_key_page_next,
+				surface, (cairo_destroy_func_t) cairo_surface_destroy);
+			cairo_surface_set_user_data(
+				surface, &fiv_io_key_page_previous, frames_head, NULL);
 			frames_head = surface;
 		} else {
 			pages = frames_head = surface;
@@ -1127,7 +1123,7 @@ open_xcursor(const gchar *data, gsize len, GError **error)
 
 	// Wrap around animations in the last page.
 	cairo_surface_set_user_data(
-		frames_head, &fastiv_io_key_frame_previous, frames_tail, NULL);
+		frames_head, &fiv_io_key_frame_previous, frames_tail, NULL);
 
 	// There is no need to copy data, assign it to the surface.
 	static cairo_user_data_key_t key = {};
@@ -1214,7 +1210,7 @@ load_libwebp_frame(WebPAnimDecoder *dec, const WebPAnimInfo *info,
 	cairo_surface_mark_dirty(surface);
 
 	// This API is confusing and awkward.
-	cairo_surface_set_user_data(surface, &fastiv_io_key_frame_duration,
+	cairo_surface_set_user_data(surface, &fiv_io_key_frame_duration,
 		(void *) (intptr_t) (timestamp - *last_timestamp), NULL);
 	*last_timestamp = timestamp;
 	return surface;
@@ -1248,20 +1244,19 @@ load_libwebp_animated(const WebPData *wd, GError **error)
 		}
 
 		if (frames_tail)
-			cairo_surface_set_user_data(frames_tail,
-				&fastiv_io_key_frame_next, surface,
-				(cairo_destroy_func_t) cairo_surface_destroy);
+			cairo_surface_set_user_data(frames_tail, &fiv_io_key_frame_next,
+				surface, (cairo_destroy_func_t) cairo_surface_destroy);
 		else
 			frames = surface;
 
-		cairo_surface_set_user_data(surface,
-			&fastiv_io_key_frame_previous, frames_tail, NULL);
+		cairo_surface_set_user_data(
+			surface, &fiv_io_key_frame_previous, frames_tail, NULL);
 		frames_tail = surface;
 	}
 
 	if (frames) {
-		cairo_surface_set_user_data(frames, &fastiv_io_key_frame_previous,
-			frames_tail, NULL);
+		cairo_surface_set_user_data(
+			frames, &fiv_io_key_frame_previous, frames_tail, NULL);
 	} else {
 		set_error(error, "the animation has no frames");
 		g_clear_pointer(&frames, cairo_surface_destroy);
@@ -1308,27 +1303,27 @@ open_libwebp(const gchar *data, gsize len, const gchar *path, GError **error)
 	uint32_t flags = WebPDemuxGetI(demux, WEBP_FF_FORMAT_FLAGS);
 	if ((flags & EXIF_FLAG) &&
 		WebPDemuxGetChunk(demux, "EXIF", 1, &chunk_iter)) {
-		cairo_surface_set_user_data(result, &fastiv_io_key_exif,
+		cairo_surface_set_user_data(result, &fiv_io_key_exif,
 			g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
 			(cairo_destroy_func_t) g_bytes_unref);
 		WebPDemuxReleaseChunkIterator(&chunk_iter);
 	}
 	if ((flags & ICCP_FLAG) &&
 		WebPDemuxGetChunk(demux, "ICCP", 1, &chunk_iter)) {
-		cairo_surface_set_user_data(result, &fastiv_io_key_icc,
+		cairo_surface_set_user_data(result, &fiv_io_key_icc,
 			g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
 			(cairo_destroy_func_t) g_bytes_unref);
 		WebPDemuxReleaseChunkIterator(&chunk_iter);
 	}
 	if ((flags & XMP_FLAG) &&
 		WebPDemuxGetChunk(demux, "XMP ", 1, &chunk_iter)) {
-		cairo_surface_set_user_data(result, &fastiv_io_key_xmp,
+		cairo_surface_set_user_data(result, &fiv_io_key_xmp,
 			g_bytes_new(chunk_iter.chunk.bytes, chunk_iter.chunk.size),
 			(cairo_destroy_func_t) g_bytes_unref);
 		WebPDemuxReleaseChunkIterator(&chunk_iter);
 	}
 	if (flags & ANIMATION_FLAG) {
-		cairo_surface_set_user_data(result, &fastiv_io_key_loops,
+		cairo_surface_set_user_data(result, &fiv_io_key_loops,
 			(void *) (uintptr_t) WebPDemuxGetI(demux, WEBP_FF_LOOP_COUNT),
 			NULL);
 	}
@@ -1419,7 +1414,7 @@ load_libheif_image(struct heif_image_handle *handle, GError **error)
 			g_warning("%s", err.message);
 			g_free(exif);
 		} else {
-			cairo_surface_set_user_data(surface, &fastiv_io_key_exif,
+			cairo_surface_set_user_data(surface, &fiv_io_key_exif,
 				g_bytes_new_take(exif, exif_len),
 				(cairo_destroy_func_t) g_bytes_unref);
 		}
@@ -1435,7 +1430,7 @@ load_libheif_image(struct heif_image_handle *handle, GError **error)
 			g_warning("%s", err.message);
 			g_free(icc);
 		} else {
-			cairo_surface_set_user_data(surface, &fastiv_io_key_icc,
+			cairo_surface_set_user_data(surface, &fiv_io_key_icc,
 				g_bytes_new_take(icc, icc_len),
 				(cairo_destroy_func_t) g_bytes_unref);
 		}
@@ -1463,8 +1458,8 @@ load_libheif_aux_images(const gchar *path, struct heif_image_handle *top,
 	n = heif_image_handle_get_list_of_auxiliary_image_IDs(top, filter, ids, n);
 	for (int i = 0; i < n; i++) {
 		struct heif_image_handle *handle = NULL;
-		struct heif_error err = heif_image_handle_get_auxiliary_image_handle(
-			top, ids[i], &handle);
+		struct heif_error err =
+			heif_image_handle_get_auxiliary_image_handle(top, ids[i], &handle);
 		if (err.code != heif_error_Ok) {
 			g_warning("%s: %s", path, err.message);
 			continue;
@@ -1534,7 +1529,7 @@ fail_read:
 #endif  // HAVE_LIBHEIF --------------------------------------------------------
 #ifdef HAVE_LIBTIFF  //---------------------------------------------------------
 
-struct fastiv_io_tiff {
+struct fiv_io_tiff {
 	unsigned char *data;
 	gchar *error;
 
@@ -1544,9 +1539,9 @@ struct fastiv_io_tiff {
 };
 
 static tsize_t
-fastiv_io_tiff_read(thandle_t h, tdata_t buf, tsize_t len)
+fiv_io_tiff_read(thandle_t h, tdata_t buf, tsize_t len)
 {
-	struct fastiv_io_tiff *io = h;
+	struct fiv_io_tiff *io = h;
 	if (len < 0) {
 		// What the FUCK! This argument is not supposed to be signed!
 		// How many mistakes can you make in such a basic API?
@@ -1568,7 +1563,7 @@ fastiv_io_tiff_read(thandle_t h, tdata_t buf, tsize_t len)
 }
 
 static tsize_t
-fastiv_io_tiff_write(G_GNUC_UNUSED thandle_t h,
+fiv_io_tiff_write(G_GNUC_UNUSED thandle_t h,
 	G_GNUC_UNUSED tdata_t buf, G_GNUC_UNUSED tsize_t len)
 {
 	errno = EBADF;
@@ -1576,9 +1571,9 @@ fastiv_io_tiff_write(G_GNUC_UNUSED thandle_t h,
 }
 
 static toff_t
-fastiv_io_tiff_seek(thandle_t h, toff_t offset, int whence)
+fiv_io_tiff_seek(thandle_t h, toff_t offset, int whence)
 {
-	struct fastiv_io_tiff *io = h;
+	struct fiv_io_tiff *io = h;
 	switch (whence) {
 	case SEEK_SET:
 		io->position = offset;
@@ -1597,22 +1592,22 @@ fastiv_io_tiff_seek(thandle_t h, toff_t offset, int whence)
 }
 
 static int
-fastiv_io_tiff_close(G_GNUC_UNUSED thandle_t h)
+fiv_io_tiff_close(G_GNUC_UNUSED thandle_t h)
 {
 	return 0;
 }
 
 static toff_t
-fastiv_io_tiff_size(thandle_t h)
+fiv_io_tiff_size(thandle_t h)
 {
-	return ((struct fastiv_io_tiff *) h)->len;
+	return ((struct fiv_io_tiff *) h)->len;
 }
 
 static void
-fastiv_io_tiff_error(thandle_t h,
-	const char *module, const char *format, va_list ap)
+fiv_io_tiff_error(
+	thandle_t h, const char *module, const char *format, va_list ap)
 {
-	struct fastiv_io_tiff *io = h;
+	struct fiv_io_tiff *io = h;
 	gchar *message = g_strdup_vprintf(format, ap);
 	if (io->error)
 		// I'm not sure if two errors can ever come in a succession,
@@ -1624,7 +1619,7 @@ fastiv_io_tiff_error(thandle_t h,
 }
 
 static void
-fastiv_io_tiff_warning(G_GNUC_UNUSED thandle_t h,
+fiv_io_tiff_warning(G_GNUC_UNUSED thandle_t h,
 	const char *module, const char *format, va_list ap)
 {
 	gchar *message = g_strdup_vprintf(format, ap);
@@ -1683,25 +1678,23 @@ load_libtiff_directory(TIFF *tiff, GError **error)
 	const uint32_t meta_len = 0;
 	const void *meta = NULL;
 	if (TIFFGetField(tiff, TIFFTAG_ICCPROFILE, &meta_len, &meta)) {
-		cairo_surface_set_user_data(surface, &fastiv_io_key_icc,
-			g_bytes_new(meta, meta_len),
-			(cairo_destroy_func_t) g_bytes_unref);
+		cairo_surface_set_user_data(surface, &fiv_io_key_icc,
+			g_bytes_new(meta, meta_len), (cairo_destroy_func_t) g_bytes_unref);
 	}
 	if (TIFFGetField(tiff, TIFFTAG_XMLPACKET, &meta_len, &meta)) {
-		cairo_surface_set_user_data(surface, &fastiv_io_key_xmp,
-			g_bytes_new(meta, meta_len),
-			(cairo_destroy_func_t) g_bytes_unref);
+		cairo_surface_set_user_data(surface, &fiv_io_key_xmp,
+			g_bytes_new(meta, meta_len), (cairo_destroy_func_t) g_bytes_unref);
 	}
 
 	// Don't ask. The API is high, alright, I'm just not sure about the level.
 	uint16_t orientation = 0;
 	if (TIFFGetField(tiff, TIFFTAG_ORIENTATION, &orientation)) {
 		if (orientation == 5 || orientation == 7)
-			cairo_surface_set_user_data(surface, &fastiv_io_key_orientation,
-				(void *) (uintptr_t) 5, NULL);
+			cairo_surface_set_user_data(
+				surface, &fiv_io_key_orientation, (void *) (uintptr_t) 5, NULL);
 		if (orientation == 6 || orientation == 8)
-			cairo_surface_set_user_data(surface, &fastiv_io_key_orientation,
-				(void *) (uintptr_t) 7, NULL);
+			cairo_surface_set_user_data(
+				surface, &fiv_io_key_orientation, (void *) (uintptr_t) 7, NULL);
 	}
 
 fail:
@@ -1716,9 +1709,9 @@ open_libtiff(const gchar *data, gsize len, const gchar *path, GError **error)
 	// Both kinds of handlers are called, redirect everything.
 	TIFFErrorHandler eh = TIFFSetErrorHandler(NULL);
 	TIFFErrorHandler wh = TIFFSetWarningHandler(NULL);
-	TIFFErrorHandlerExt ehe = TIFFSetErrorHandlerExt(fastiv_io_tiff_error);
-	TIFFErrorHandlerExt whe = TIFFSetWarningHandlerExt(fastiv_io_tiff_warning);
-	struct fastiv_io_tiff h = {
+	TIFFErrorHandlerExt ehe = TIFFSetErrorHandlerExt(fiv_io_tiff_error);
+	TIFFErrorHandlerExt whe = TIFFSetWarningHandlerExt(fiv_io_tiff_warning);
+	struct fiv_io_tiff h = {
 		.data = (unsigned char *) data,
 		.position = 0,
 		.len = len,
@@ -1726,8 +1719,8 @@ open_libtiff(const gchar *data, gsize len, const gchar *path, GError **error)
 
 	cairo_surface_t *result = NULL, *result_tail = NULL;
 	TIFF *tiff = TIFFClientOpen(path, "rm" /* Avoid mmap. */, &h,
-		fastiv_io_tiff_read, fastiv_io_tiff_write, fastiv_io_tiff_seek,
-		fastiv_io_tiff_close, fastiv_io_tiff_size, NULL, NULL);
+		fiv_io_tiff_read, fiv_io_tiff_write, fiv_io_tiff_seek,
+		fiv_io_tiff_close, fiv_io_tiff_size, NULL, NULL);
 	if (!tiff)
 		goto fail;
 
@@ -1759,7 +1752,7 @@ open_libtiff(const gchar *data, gsize len, const gchar *path, GError **error)
 		// We inform about unsupported directories, but do not fail on them.
 		GError *err = NULL;
 		if (!try_append_page(
-			load_libtiff_directory(tiff, &err), &result, &result_tail)) {
+				load_libtiff_directory(tiff, &err), &result, &result_tail)) {
 			g_warning("%s: %s", path, err->message);
 			g_error_free(err);
 		}
@@ -1803,8 +1796,8 @@ open_gdkpixbuf(const gchar *data, gsize len, GError **error)
 	if (orientation && strlen(orientation) == 1) {
 		int n = *orientation - '0';
 		if (n >= 1 && n <= 8)
-			cairo_surface_set_user_data(surface, &fastiv_io_key_orientation,
-				(void *) (uintptr_t) n, NULL);
+			cairo_surface_set_user_data(
+				surface, &fiv_io_key_orientation, (void *) (uintptr_t) n, NULL);
 	}
 
 	const char *icc_profile = gdk_pixbuf_get_option(pixbuf, "icc-profile");
@@ -1812,7 +1805,7 @@ open_gdkpixbuf(const gchar *data, gsize len, GError **error)
 		gsize out_len = 0;
 		guchar *raw = g_base64_decode(icc_profile, &out_len);
 		if (raw) {
-			cairo_surface_set_user_data(surface, &fastiv_io_key_icc,
+			cairo_surface_set_user_data(surface, &fiv_io_key_icc,
 				g_bytes_new_take(raw, out_len),
 				(cairo_destroy_func_t) g_bytes_unref);
 		}
@@ -1824,21 +1817,21 @@ open_gdkpixbuf(const gchar *data, gsize len, GError **error)
 
 #endif  // HAVE_GDKPIXBUF ------------------------------------------------------
 
-cairo_user_data_key_t fastiv_io_key_exif;
-cairo_user_data_key_t fastiv_io_key_orientation;
-cairo_user_data_key_t fastiv_io_key_icc;
-cairo_user_data_key_t fastiv_io_key_xmp;
+cairo_user_data_key_t fiv_io_key_exif;
+cairo_user_data_key_t fiv_io_key_orientation;
+cairo_user_data_key_t fiv_io_key_icc;
+cairo_user_data_key_t fiv_io_key_xmp;
 
-cairo_user_data_key_t fastiv_io_key_frame_next;
-cairo_user_data_key_t fastiv_io_key_frame_previous;
-cairo_user_data_key_t fastiv_io_key_frame_duration;
-cairo_user_data_key_t fastiv_io_key_loops;
+cairo_user_data_key_t fiv_io_key_frame_next;
+cairo_user_data_key_t fiv_io_key_frame_previous;
+cairo_user_data_key_t fiv_io_key_frame_duration;
+cairo_user_data_key_t fiv_io_key_loops;
 
-cairo_user_data_key_t fastiv_io_key_page_next;
-cairo_user_data_key_t fastiv_io_key_page_previous;
+cairo_user_data_key_t fiv_io_key_page_next;
+cairo_user_data_key_t fiv_io_key_page_previous;
 
 cairo_surface_t *
-fastiv_io_open(const gchar *path, GError **error)
+fiv_io_open(const gchar *path, GError **error)
 {
 	// TODO(p): Don't always load everything into memory, test type first,
 	// so that we can reject non-pictures early.  Wuffs only needs the first
@@ -1859,14 +1852,14 @@ fastiv_io_open(const gchar *path, GError **error)
 	if (!g_file_get_contents(path, &data, &len, error))
 		return NULL;
 
-	cairo_surface_t *surface = fastiv_io_open_from_data(data, len, path, error);
+	cairo_surface_t *surface = fiv_io_open_from_data(data, len, path, error);
 	free(data);
 	return surface;
 }
 
 cairo_surface_t *
-fastiv_io_open_from_data(const char *data, size_t len, const gchar *path,
-	GError **error)
+fiv_io_open_from_data(
+	const char *data, size_t len, const gchar *path, GError **error)
 {
 	wuffs_base__slice_u8 prefix =
 		wuffs_base__make_slice_u8((uint8_t *) data, len);
@@ -1972,11 +1965,11 @@ fastiv_io_open_from_data(const char *data, size_t len, const gchar *path,
 	gsize exif_len = 0;
 	gconstpointer exif_data = NULL;
 	if (surface &&
-		(exif = cairo_surface_get_user_data(surface, &fastiv_io_key_exif)) &&
+		(exif = cairo_surface_get_user_data(surface, &fiv_io_key_exif)) &&
 		(exif_data = g_bytes_get_data(exif, &exif_len))) {
-		cairo_surface_set_user_data(surface, &fastiv_io_key_orientation,
-			(void *) (uintptr_t) fastiv_io_exif_orientation(
-				exif_data, exif_len), NULL);
+		cairo_surface_set_user_data(surface, &fiv_io_key_orientation,
+			(void *) (uintptr_t) fiv_io_exif_orientation(exif_data, exif_len),
+			NULL);
 	}
 	return surface;
 }
@@ -2067,11 +2060,11 @@ encode_webp_animation(WebPMux *mux, cairo_surface_t *page)
 {
 	gboolean ok = TRUE;
 	for (cairo_surface_t *frame = page; ok && frame; frame =
-			cairo_surface_get_user_data(frame, &fastiv_io_key_frame_next)) {
+			cairo_surface_get_user_data(frame, &fiv_io_key_frame_next)) {
 		WebPMuxFrameInfo info = {
 			.bitstream = encode_lossless_webp(frame),
 			.duration = (intptr_t) cairo_surface_get_user_data(
-				frame, &fastiv_io_key_frame_duration),
+				frame, &fiv_io_key_frame_duration),
 			.id = WEBP_CHUNK_ANMF,
 			.dispose_method = WEBP_MUX_DISPOSE_NONE,
 			.blend_method = WEBP_MUX_NO_BLEND,
@@ -2082,7 +2075,7 @@ encode_webp_animation(WebPMux *mux, cairo_surface_t *page)
 	WebPMuxAnimParams params = {
 		.bgcolor = 0x00000000,  // BGRA, curiously.
 		.loop_count = (uintptr_t)
-			cairo_surface_get_user_data(page, &fastiv_io_key_loops),
+			cairo_surface_get_user_data(page, &fiv_io_key_loops),
 	};
 	return ok && WebPMuxSetAnimationParams(mux, &params) == WEBP_MUX_OK;
 }
@@ -2102,7 +2095,7 @@ transfer_metadata(WebPMux *mux, const char *fourcc, cairo_surface_t *page,
 }
 
 gboolean
-fastiv_io_save(cairo_surface_t *page, cairo_surface_t *frame, const gchar *path,
+fiv_io_save(cairo_surface_t *page, cairo_surface_t *frame, const gchar *path,
 	GError **error)
 {
 	g_return_val_if_fail(page != NULL, FALSE);
@@ -2112,14 +2105,14 @@ fastiv_io_save(cairo_surface_t *page, cairo_surface_t *frame, const gchar *path,
 	WebPMux *mux = WebPMuxNew();
 	if (frame)
 		ok = encode_webp_image(mux, frame);
-	else if (!cairo_surface_get_user_data(page, &fastiv_io_key_frame_next))
+	else if (!cairo_surface_get_user_data(page, &fiv_io_key_frame_next))
 		ok = encode_webp_image(mux, page);
 	else
 		ok = encode_webp_animation(mux, page);
 
-	ok = ok && transfer_metadata(mux, "EXIF", page, &fastiv_io_key_exif);
-	ok = ok && transfer_metadata(mux, "ICCP", page, &fastiv_io_key_icc);
-	ok = ok && transfer_metadata(mux, "XMP ", page, &fastiv_io_key_xmp);
+	ok = ok && transfer_metadata(mux, "EXIF", page, &fiv_io_key_exif);
+	ok = ok && transfer_metadata(mux, "ICCP", page, &fiv_io_key_icc);
+	ok = ok && transfer_metadata(mux, "XMP ", page, &fiv_io_key_xmp);
 
 	WebPData assembled = {};
 	WebPDataInit(&assembled);
@@ -2137,8 +2130,8 @@ fastiv_io_save(cairo_surface_t *page, cairo_surface_t *frame, const gchar *path,
 #endif  // HAVE_LIBWEBP
 // --- Metadata ----------------------------------------------------------------
 
-FastivIoOrientation
-fastiv_io_exif_orientation(const guint8 *tiff, gsize len)
+FivIoOrientation
+fiv_io_exif_orientation(const guint8 *tiff, gsize len)
 {
 	// libtiff also knows how to do this, but it's not a lot of code.
 	// The "Orientation" tag/field is part of Baseline TIFF 6.0 (1992),
@@ -2152,7 +2145,7 @@ fastiv_io_exif_orientation(const guint8 *tiff, gsize len)
 	uint16_t (*u16)(const uint8_t *) = NULL;
 	uint32_t (*u32)(const uint8_t *) = NULL;
 	if (tiff + 8 > end) {
-		return FastivIoOrientationUnknown;
+		return FivIoOrientationUnknown;
 	} else if (!memcmp(tiff, le, sizeof le)) {
 		u16 = wuffs_base__peek_u16le__no_bounds_check;
 		u32 = wuffs_base__peek_u32le__no_bounds_check;
@@ -2160,12 +2153,12 @@ fastiv_io_exif_orientation(const guint8 *tiff, gsize len)
 		u16 = wuffs_base__peek_u16be__no_bounds_check;
 		u32 = wuffs_base__peek_u32be__no_bounds_check;
 	} else {
-		return FastivIoOrientationUnknown;
+		return FivIoOrientationUnknown;
 	}
 
 	const uint8_t *ifd0 = tiff + u32(tiff + 4);
 	if (ifd0 + 2 > end)
-		return FastivIoOrientationUnknown;
+		return FivIoOrientationUnknown;
 
 	uint16_t fields = u16(ifd0);
 	enum { BYTE = 1, ASCII, SHORT, LONG, RATIONAL,
@@ -2178,12 +2171,11 @@ fastiv_io_exif_orientation(const guint8 *tiff, gsize len)
 			value16 >= 1 && value16 <= 8)
 			return value16;
 	}
-	return FastivIoOrientationUnknown;
+	return FivIoOrientationUnknown;
 }
 
 gboolean
-fastiv_io_save_metadata(
-	cairo_surface_t *page, const gchar *path, GError **error)
+fiv_io_save_metadata(cairo_surface_t *page, const gchar *path, GError **error)
 {
 	g_return_val_if_fail(page != NULL, FALSE);
 
@@ -2204,7 +2196,7 @@ fastiv_io_save_metadata(
 
 	// Adobe XMP Specification Part 3: Storage in Files, 2020/1, 1.1.3
 	// I don't care if Exiv2 supports it this way.
-	if ((data = cairo_surface_get_user_data(page, &fastiv_io_key_exif)) &&
+	if ((data = cairo_surface_get_user_data(page, &fiv_io_key_exif)) &&
 		(p = g_bytes_get_data(data, &len))) {
 		while (len) {
 			gsize chunk = MIN(len, 0xFFFF - 2 - 6);
@@ -2221,7 +2213,7 @@ fastiv_io_save_metadata(
 	}
 
 	// https://www.color.org/specification/ICC1v43_2010-12.pdf B.4
-	if ((data = cairo_surface_get_user_data(page, &fastiv_io_key_icc)) &&
+	if ((data = cairo_surface_get_user_data(page, &fiv_io_key_icc)) &&
 		(p = g_bytes_get_data(data, &len))) {
 		gsize limit = 0xFFFF - 2 - 12;
 		uint8_t current = 0, total = (len + limit - 1) / limit;
@@ -2244,7 +2236,7 @@ fastiv_io_save_metadata(
 	// Adobe XMP Specification Part 3: Storage in Files, 2020/1, 1.1.3
 	// If the main segment overflows, then it's a sign of bad luck,
 	// because 1.1.3.1 is way too complex.
-	if ((data = cairo_surface_get_user_data(page, &fastiv_io_key_xmp)) &&
+	if ((data = cairo_surface_get_user_data(page, &fiv_io_key_xmp)) &&
 		(p = g_bytes_get_data(data, &len))) {
 		while (len) {
 			gsize chunk = MIN(len, 0xFFFF - 2 - 29);
@@ -2277,25 +2269,25 @@ fastiv_io_save_metadata(
 // --- Thumbnails --------------------------------------------------------------
 
 GType
-fastiv_io_thumbnail_size_get_type(void)
+fiv_io_thumbnail_size_get_type(void)
 {
 	static gsize guard;
 	if (g_once_init_enter(&guard)) {
-#define XX(name, value, dir) {FASTIV_IO_THUMBNAIL_SIZE_ ## name, \
-	"FASTIV_IO_THUMBNAIL_SIZE_" #name, #name},
-		static const GEnumValue values[] = {FASTIV_IO_THUMBNAIL_SIZES(XX) {}};
+#define XX(name, value, dir) {FIV_IO_THUMBNAIL_SIZE_ ## name, \
+	"FIV_IO_THUMBNAIL_SIZE_" #name, #name},
+		static const GEnumValue values[] = {FIV_IO_THUMBNAIL_SIZES(XX) {}};
 #undef XX
 		GType type = g_enum_register_static(
-			g_intern_static_string("FastivIoThumbnailSize"), values);
+			g_intern_static_string("FivIoThumbnailSize"), values);
 		g_once_init_leave(&guard, type);
 	}
 	return guard;
 }
 
 #define XX(name, value, dir) {value, dir},
-FastivIoThumbnailSizeInfo
-	fastiv_io_thumbnail_sizes[FASTIV_IO_THUMBNAIL_SIZE_COUNT] = {
-		FASTIV_IO_THUMBNAIL_SIZES(XX)};
+FivIoThumbnailSizeInfo
+	fiv_io_thumbnail_sizes[FIV_IO_THUMBNAIL_SIZE_COUNT] = {
+		FIV_IO_THUMBNAIL_SIZES(XX)};
 #undef XX
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@@ -2436,10 +2428,10 @@ fail_init:
 }
 
 cairo_surface_t *
-fastiv_io_lookup_thumbnail(GFile *target, FastivIoThumbnailSize size)
+fiv_io_lookup_thumbnail(GFile *target, FivIoThumbnailSize size)
 {
-	g_return_val_if_fail(size >= FASTIV_IO_THUMBNAIL_SIZE_MIN &&
-		size <= FASTIV_IO_THUMBNAIL_SIZE_MAX, NULL);
+	g_return_val_if_fail(size >= FIV_IO_THUMBNAIL_SIZE_MIN &&
+		size <= FIV_IO_THUMBNAIL_SIZE_MAX, NULL);
 
 	// Local files only, at least for now.
 	gchar *path = g_file_get_path(target);
@@ -2459,13 +2451,13 @@ fastiv_io_lookup_thumbnail(GFile *target, FastivIoThumbnailSize size)
 	// The lookup sequence is: nominal..max, then mirroring back to ..min.
 	cairo_surface_t *result = NULL;
 	GError *error = NULL;
-	for (int i = 0; i < FASTIV_IO_THUMBNAIL_SIZE_COUNT; i++) {
+	for (int i = 0; i < FIV_IO_THUMBNAIL_SIZE_COUNT; i++) {
 		int use = size + i;
-		if (use > FASTIV_IO_THUMBNAIL_SIZE_MAX)
-			use = FASTIV_IO_THUMBNAIL_SIZE_MAX - i;
+		if (use > FIV_IO_THUMBNAIL_SIZE_MAX)
+			use = FIV_IO_THUMBNAIL_SIZE_MAX - i;
 
 		gchar *path = g_strdup_printf("%s/thumbnails/%s/%s.png", cache_dir,
-			fastiv_io_thumbnail_sizes[use].thumbnail_spec_name, sum);
+			fiv_io_thumbnail_sizes[use].thumbnail_spec_name, sum);
 		result = read_spng_thumbnail(path, uri, st.st_mtim.tv_sec, &error);
 		if (error) {
 			g_debug("%s: %s", path, error->message);
@@ -2483,7 +2475,7 @@ fastiv_io_lookup_thumbnail(GFile *target, FastivIoThumbnailSize size)
 }
 
 int
-fastiv_io_filecmp(GFile *location1, GFile *location2)
+fiv_io_filecmp(GFile *location1, GFile *location2)
 {
 	if (g_file_has_prefix(location1, location2))
 		return +1;
diff --git a/fastiv-io.h b/fiv-io.h
index 01150a6..5fbe276 100644
--- a/fastiv-io.h
+++ b/fiv-io.h
@@ -1,5 +1,5 @@
 //
-// fastiv-io.h: image operations
+// fiv-io.h: image operations
 //
 // Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
 //
@@ -18,105 +18,105 @@
 #pragma once
 
 #include <cairo.h>
-#include <glib.h>
 #include <gio/gio.h>
+#include <glib.h>
 
-extern const char *fastiv_io_supported_media_types[];
+extern const char *fiv_io_supported_media_types[];
 
-char **fastiv_io_all_supported_media_types(void);
+char **fiv_io_all_supported_media_types(void);
 
 // Userdata are typically attached to all Cairo surfaces in an animation.
 
 /// GBytes with plain Exif/TIFF data.
-extern cairo_user_data_key_t fastiv_io_key_exif;
-/// FastivIoOrientation, as a uintptr_t.
-extern cairo_user_data_key_t fastiv_io_key_orientation;
+extern cairo_user_data_key_t fiv_io_key_exif;
+/// FivIoOrientation, as a uintptr_t.
+extern cairo_user_data_key_t fiv_io_key_orientation;
 /// GBytes with plain ICC profile data.
-extern cairo_user_data_key_t fastiv_io_key_icc;
+extern cairo_user_data_key_t fiv_io_key_icc;
 /// GBytes with plain XMP data.
-extern cairo_user_data_key_t fastiv_io_key_xmp;
+extern cairo_user_data_key_t fiv_io_key_xmp;
 
 /// The next frame in a sequence, as a surface, in a chain, pre-composited.
 /// There is no wrap-around.
-extern cairo_user_data_key_t fastiv_io_key_frame_next;
+extern cairo_user_data_key_t fiv_io_key_frame_next;
 /// The previous frame in a sequence, as a surface, in a chain, pre-composited.
 /// This is a weak pointer that wraps around, and needn't be present
 /// for static images.
-extern cairo_user_data_key_t fastiv_io_key_frame_previous;
+extern cairo_user_data_key_t fiv_io_key_frame_previous;
 /// Frame duration in milliseconds as an intptr_t.
-extern cairo_user_data_key_t fastiv_io_key_frame_duration;
+extern cairo_user_data_key_t fiv_io_key_frame_duration;
 /// How many times to repeat the animation, or zero for +inf, as a uintptr_t.
-extern cairo_user_data_key_t fastiv_io_key_loops;
+extern cairo_user_data_key_t fiv_io_key_loops;
 
 /// The first frame of the next page, as a surface, in a chain.
 /// There is no wrap-around.
-extern cairo_user_data_key_t fastiv_io_key_page_next;
+extern cairo_user_data_key_t fiv_io_key_page_next;
 /// The first frame of the previous page, as a surface, in a chain.
 /// There is no wrap-around. This is a weak pointer.
-extern cairo_user_data_key_t fastiv_io_key_page_previous;
+extern cairo_user_data_key_t fiv_io_key_page_previous;
 
-cairo_surface_t *fastiv_io_open(const gchar *path, GError **error);
-cairo_surface_t *fastiv_io_open_from_data(
+cairo_surface_t *fiv_io_open(const gchar *path, GError **error);
+cairo_surface_t *fiv_io_open_from_data(
 	const char *data, size_t len, const gchar *path, GError **error);
 
-int fastiv_io_filecmp(GFile *f1, GFile *f2);
+int fiv_io_filecmp(GFile *f1, GFile *f2);
 
 // --- Export ------------------------------------------------------------------
 
 /// Requires libwebp.
 /// If no exact frame is specified, this potentially creates an animation.
-gboolean fastiv_io_save(cairo_surface_t *page, cairo_surface_t *frame,
+gboolean fiv_io_save(cairo_surface_t *page, cairo_surface_t *frame,
 	const gchar *path, GError **error);
 
 // --- Metadata ----------------------------------------------------------------
 
 // https://www.cipa.jp/std/documents/e/DC-008-2012_E.pdf Table 6
-typedef enum _FastivIoOrientation {
-	FastivIoOrientationUnknown   = 0,
-	FastivIoOrientation0         = 1,
-	FastivIoOrientationMirror0   = 2,
-	FastivIoOrientation180       = 3,
-	FastivIoOrientationMirror180 = 4,
-	FastivIoOrientationMirror270 = 5,
-	FastivIoOrientation90        = 6,
-	FastivIoOrientationMirror90  = 7,
-	FastivIoOrientation270       = 8
-} FastivIoOrientation;
-
-FastivIoOrientation fastiv_io_exif_orientation(const guint8 *exif, gsize len);
+typedef enum _FivIoOrientation {
+	FivIoOrientationUnknown   = 0,
+	FivIoOrientation0         = 1,
+	FivIoOrientationMirror0   = 2,
+	FivIoOrientation180       = 3,
+	FivIoOrientationMirror180 = 4,
+	FivIoOrientationMirror270 = 5,
+	FivIoOrientation90        = 6,
+	FivIoOrientationMirror90  = 7,
+	FivIoOrientation270       = 8
+} FivIoOrientation;
+
+FivIoOrientation fiv_io_exif_orientation(const guint8 *exif, gsize len);
 
 /// Save metadata attached by this module in Exiv2 format.
-gboolean fastiv_io_save_metadata(
+gboolean fiv_io_save_metadata(
 	cairo_surface_t *page, const gchar *path, GError **error);
 
 // --- Thumbnails --------------------------------------------------------------
 
 // And this is how you avoid glib-mkenums.
-typedef enum _FastivIoThumbnailSize {
-#define FASTIV_IO_THUMBNAIL_SIZES(XX) \
+typedef enum _FivIoThumbnailSize {
+#define FIV_IO_THUMBNAIL_SIZES(XX) \
 	XX(SMALL,  128, "normal") \
 	XX(NORMAL, 256, "large") \
 	XX(LARGE,  512, "x-large") \
 	XX(HUGE,  1024, "xx-large")
-#define XX(name, value, dir) FASTIV_IO_THUMBNAIL_SIZE_ ## name,
-	FASTIV_IO_THUMBNAIL_SIZES(XX)
+#define XX(name, value, dir) FIV_IO_THUMBNAIL_SIZE_ ## name,
+	FIV_IO_THUMBNAIL_SIZES(XX)
 #undef XX
-	FASTIV_IO_THUMBNAIL_SIZE_COUNT,
+	FIV_IO_THUMBNAIL_SIZE_COUNT,
 
-	FASTIV_IO_THUMBNAIL_SIZE_MIN = 0,
-	FASTIV_IO_THUMBNAIL_SIZE_MAX = FASTIV_IO_THUMBNAIL_SIZE_COUNT - 1
-} FastivIoThumbnailSize;
+	FIV_IO_THUMBNAIL_SIZE_MIN = 0,
+	FIV_IO_THUMBNAIL_SIZE_MAX = FIV_IO_THUMBNAIL_SIZE_COUNT - 1
+} FivIoThumbnailSize;
 
-GType fastiv_io_thumbnail_size_get_type(void) G_GNUC_CONST;
-#define FASTIV_TYPE_IO_THUMBNAIL_SIZE (fastiv_io_thumbnail_size_get_type())
+GType fiv_io_thumbnail_size_get_type(void) G_GNUC_CONST;
+#define FIV_TYPE_IO_THUMBNAIL_SIZE (fiv_io_thumbnail_size_get_type())
 
-typedef struct _FastivIoThumbnailSizeInfo {
+typedef struct _FivIoThumbnailSizeInfo {
 	int size;                           ///< Nominal size in pixels
 	const char *thumbnail_spec_name;    ///< thumbnail-spec directory name
-} FastivIoThumbnailSizeInfo;
+} FivIoThumbnailSizeInfo;
 
-extern FastivIoThumbnailSizeInfo
-	fastiv_io_thumbnail_sizes[FASTIV_IO_THUMBNAIL_SIZE_COUNT];
+extern FivIoThumbnailSizeInfo
+	fiv_io_thumbnail_sizes[FIV_IO_THUMBNAIL_SIZE_COUNT];
 
-cairo_surface_t *fastiv_io_lookup_thumbnail(
-	GFile *target, FastivIoThumbnailSize size);
+cairo_surface_t *fiv_io_lookup_thumbnail(
+	GFile *target, FivIoThumbnailSize size);
diff --git a/fastiv-sidebar.c b/fiv-sidebar.c
index ecfec3e..5a01194 100644
--- a/fastiv-sidebar.c
+++ b/fiv-sidebar.c
@@ -1,5 +1,5 @@
 //
-// fastiv-sidebar.c: molesting GtkPlacesSidebar
+// fiv-sidebar.c: molesting GtkPlacesSidebar
 //
 // Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
 //
@@ -17,10 +17,10 @@
 
 #include <gtk/gtk.h>
 
-#include "fastiv-io.h"  // fastiv_io_filecmp
-#include "fastiv-sidebar.h"
+#include "fiv-io.h"  // fiv_io_filecmp
+#include "fiv-sidebar.h"
 
-struct _FastivSidebar {
+struct _FivSidebar {
 	GtkScrolledWindow parent_instance;
 	GtkPlacesSidebar *places;
 	GtkWidget *toolbar;
@@ -28,9 +28,9 @@ struct _FastivSidebar {
 	GFile *location;
 };
 
-G_DEFINE_TYPE(FastivSidebar, fastiv_sidebar, GTK_TYPE_SCROLLED_WINDOW)
+G_DEFINE_TYPE(FivSidebar, fiv_sidebar, GTK_TYPE_SCROLLED_WINDOW)
 
-G_DEFINE_QUARK(fastiv-sidebar-location-quark, fastiv_sidebar_location)
+G_DEFINE_QUARK(fiv-sidebar-location-quark, fiv_sidebar_location)
 
 enum {
 	OPEN_LOCATION,
@@ -41,19 +41,19 @@ enum {
 static guint sidebar_signals[LAST_SIGNAL];
 
 static void
-fastiv_sidebar_dispose(GObject *gobject)
+fiv_sidebar_dispose(GObject *gobject)
 {
-	FastivSidebar *self = FASTIV_SIDEBAR(gobject);
+	FivSidebar *self = FIV_SIDEBAR(gobject);
 	g_clear_object(&self->location);
 
-	G_OBJECT_CLASS(fastiv_sidebar_parent_class)->dispose(gobject);
+	G_OBJECT_CLASS(fiv_sidebar_parent_class)->dispose(gobject);
 }
 
 static void
-fastiv_sidebar_class_init(FastivSidebarClass *klass)
+fiv_sidebar_class_init(FivSidebarClass *klass)
 {
 	GObjectClass *object_class = G_OBJECT_CLASS(klass);
-	object_class->dispose = fastiv_sidebar_dispose;
+	object_class->dispose = fiv_sidebar_dispose;
 
 	// You're giving me no choice, Adwaita.
 	// Your style is hardcoded to match against the class' CSS name.
@@ -117,7 +117,7 @@ create_row(GFile *file, const char *icon_name)
 	gtk_container_add(GTK_CONTAINER(revealer), rowbox);
 
 	GtkWidget *row = gtk_list_box_row_new();
-	g_object_set_qdata_full(G_OBJECT(row), fastiv_sidebar_location_quark(),
+	g_object_set_qdata_full(G_OBJECT(row), fiv_sidebar_location_quark(),
 		g_object_ref(file), (GDestroyNotify) g_object_unref);
 	gtk_container_add(GTK_CONTAINER(row), revealer);
 	gtk_widget_show_all(row);
@@ -128,13 +128,13 @@ static gint
 listbox_compare(
 	GtkListBoxRow *row1, GtkListBoxRow *row2, G_GNUC_UNUSED gpointer user_data)
 {
-	return fastiv_io_filecmp(
-		g_object_get_qdata(G_OBJECT(row1), fastiv_sidebar_location_quark()),
-		g_object_get_qdata(G_OBJECT(row2), fastiv_sidebar_location_quark()));
+	return fiv_io_filecmp(
+		g_object_get_qdata(G_OBJECT(row1), fiv_sidebar_location_quark()),
+		g_object_get_qdata(G_OBJECT(row2), fiv_sidebar_location_quark()));
 }
 
 static void
-update_location(FastivSidebar *self, GFile *location)
+update_location(FivSidebar *self, GFile *location)
 {
 	if (location) {
 		g_clear_object(&self->location);
@@ -172,7 +172,7 @@ update_location(FastivSidebar *self, GFile *location)
 		return;
 
 	// TODO(p): gtk_list_box_set_filter_func(), or even use a model,
-	// which could be shared with FastivBrowser.
+	// which could be shared with FivBrowser.
 	while (TRUE) {
 		GFileInfo *info = NULL;
 		GFile *child = NULL;
@@ -192,9 +192,9 @@ static void
 on_open_breadcrumb(
 	G_GNUC_UNUSED GtkListBox *listbox, GtkListBoxRow *row, gpointer user_data)
 {
-	FastivSidebar *self = FASTIV_SIDEBAR(user_data);
+	FivSidebar *self = FIV_SIDEBAR(user_data);
 	GFile *location =
-		g_object_get_qdata(G_OBJECT(row), fastiv_sidebar_location_quark());
+		g_object_get_qdata(G_OBJECT(row), fiv_sidebar_location_quark());
 	g_signal_emit(self, sidebar_signals[OPEN_LOCATION], 0,
 		location, GTK_PLACES_OPEN_NORMAL);
 }
@@ -203,7 +203,7 @@ static void
 on_open_location(G_GNUC_UNUSED GtkPlacesSidebar *sidebar, GFile *location,
 	GtkPlacesOpenFlags flags, gpointer user_data)
 {
-	FastivSidebar *self = FASTIV_SIDEBAR(user_data);
+	FivSidebar *self = FIV_SIDEBAR(user_data);
 	g_signal_emit(self, sidebar_signals[OPEN_LOCATION], 0, location, flags);
 
 	// Deselect the item in GtkPlacesSidebar, if unsuccessful.
@@ -216,7 +216,7 @@ complete_path(GFile *location, GtkListStore *model)
 	// TODO(p): Do not enter directories unless followed by '/'.
 	// This information has already been stripped from `location`.
 	GFile *parent = G_FILE_TYPE_DIRECTORY ==
-		g_file_query_file_type(location, G_FILE_QUERY_INFO_NONE, NULL)
+			g_file_query_file_type(location, G_FILE_QUERY_INFO_NONE, NULL)
 		? g_object_ref(location)
 		: g_file_get_parent(location);
 	if (!parent)
@@ -257,7 +257,7 @@ fail_enumerator:
 }
 
 static GFile *
-resolve_location(FastivSidebar *self, const char *text)
+resolve_location(FivSidebar *self, const char *text)
 {
 	// Relative paths produce invalid GFile objects with this function.
 	// And even if they didn't, we have our own root for them.
@@ -278,7 +278,7 @@ resolve_location(FastivSidebar *self, const char *text)
 static void
 on_enter_location_changed(GtkEntry *entry, gpointer user_data)
 {
-	FastivSidebar *self = FASTIV_SIDEBAR(user_data);
+	FivSidebar *self = FIV_SIDEBAR(user_data);
 	const char *text = gtk_entry_get_text(entry);
 	GFile *location = resolve_location(self, text);
 
@@ -299,10 +299,10 @@ on_enter_location_changed(GtkEntry *entry, gpointer user_data)
 }
 
 static void
-on_show_enter_location(G_GNUC_UNUSED GtkPlacesSidebar *sidebar,
-	G_GNUC_UNUSED gpointer user_data)
+on_show_enter_location(
+	G_GNUC_UNUSED GtkPlacesSidebar *sidebar, G_GNUC_UNUSED gpointer user_data)
 {
-	FastivSidebar *self = FASTIV_SIDEBAR(user_data);
+	FivSidebar *self = FIV_SIDEBAR(user_data);
 	GtkWidget *dialog = gtk_dialog_new_with_buttons("Enter location",
 		GTK_WINDOW(gtk_widget_get_toplevel(GTK_WIDGET(self))),
 		GTK_DIALOG_DESTROY_WITH_PARENT | GTK_DIALOG_MODAL |
@@ -353,7 +353,7 @@ on_show_enter_location(G_GNUC_UNUSED GtkPlacesSidebar *sidebar,
 }
 
 static void
-fastiv_sidebar_init(FastivSidebar *self)
+fiv_sidebar_init(FivSidebar *self)
 {
 	// TODO(p): Transplant functionality from the shitty GtkPlacesSidebar.
 	// We cannot reasonably place any new items within its own GtkListBox,
@@ -406,28 +406,28 @@ fastiv_sidebar_init(FastivSidebar *self)
 	gtk_style_context_add_class(gtk_widget_get_style_context(GTK_WIDGET(self)),
 		GTK_STYLE_CLASS_SIDEBAR);
 	gtk_style_context_add_class(gtk_widget_get_style_context(GTK_WIDGET(self)),
-		"fastiv");
+		"fiv");
 }
 
 // --- Public interface --------------------------------------------------------
 
 void
-fastiv_sidebar_set_location(FastivSidebar *self, GFile *location)
+fiv_sidebar_set_location(FivSidebar *self, GFile *location)
 {
-	g_return_if_fail(FASTIV_IS_SIDEBAR(self));
+	g_return_if_fail(FIV_IS_SIDEBAR(self));
 	update_location(self, location);
 }
 
 void
-fastiv_sidebar_show_enter_location(FastivSidebar *self)
+fiv_sidebar_show_enter_location(FivSidebar *self)
 {
-	g_return_if_fail(FASTIV_IS_SIDEBAR(self));
+	g_return_if_fail(FIV_IS_SIDEBAR(self));
 	g_signal_emit_by_name(self->places, "show-enter-location");
 }
 
 GtkBox *
-fastiv_sidebar_get_toolbar(FastivSidebar *self)
+fiv_sidebar_get_toolbar(FivSidebar *self)
 {
-	g_return_val_if_fail(FASTIV_IS_SIDEBAR(self), NULL);
+	g_return_val_if_fail(FIV_IS_SIDEBAR(self), NULL);
 	return GTK_BOX(self->toolbar);
 }
diff --git a/fastiv-sidebar.h b/fiv-sidebar.h
index 447dce2..8a3f14a 100644
--- a/fastiv-sidebar.h
+++ b/fiv-sidebar.h
@@ -1,5 +1,5 @@
 //
-// fastiv-sidebar.h: molesting GtkPlacesSidebar
+// fiv-sidebar.h: molesting GtkPlacesSidebar
 //
 // Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
 //
@@ -19,10 +19,9 @@
 
 #include <gtk/gtk.h>
 
-#define FASTIV_TYPE_SIDEBAR (fastiv_sidebar_get_type())
-G_DECLARE_FINAL_TYPE(
-	FastivSidebar, fastiv_sidebar, FASTIV, SIDEBAR, GtkScrolledWindow)
+#define FIV_TYPE_SIDEBAR (fiv_sidebar_get_type())
+G_DECLARE_FINAL_TYPE(FivSidebar, fiv_sidebar, FIV, SIDEBAR, GtkScrolledWindow)
 
-void fastiv_sidebar_set_location(FastivSidebar *self, GFile *location);
-void fastiv_sidebar_show_enter_location(FastivSidebar *self);
-GtkBox *fastiv_sidebar_get_toolbar(FastivSidebar *self);
+void fiv_sidebar_set_location(FivSidebar *self, GFile *location);
+void fiv_sidebar_show_enter_location(FivSidebar *self);
+GtkBox *fiv_sidebar_get_toolbar(FivSidebar *self);
diff --git a/fastiv-view.c b/fiv-view.c
index 5039aec..e064b56 100644
--- a/fastiv-view.c
+++ b/fiv-view.c
@@ -1,5 +1,5 @@
 //
-// fastiv-view.c: fast image viewer - view widget
+// fiv-view.c: fast image viewer - view widget
 //
 // Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
 //
@@ -28,15 +28,15 @@
 #include <gdk/gdkquartz.h>
 #endif  // GDK_WINDOWING_QUARTZ
 
-#include "fastiv-io.h"
-#include "fastiv-view.h"
+#include "fiv-io.h"
+#include "fiv-view.h"
 
-struct _FastivView {
+struct _FivView {
 	GtkWidget parent_instance;
 	cairo_surface_t *image;             ///< The loaded image (sequence)
 	cairo_surface_t *page;              ///< Current page within image, weak
 	cairo_surface_t *frame;             ///< Current frame within page, weak
-	FastivIoOrientation orientation;    ///< Current page orientation
+	FivIoOrientation orientation;       ///< Current page orientation
 	bool filter;                        ///< Smooth scaling toggle
 	bool scale_to_fit;                  ///< Image no larger than the allocation
 	double scale;                       ///< Scaling factor
@@ -46,42 +46,42 @@ struct _FastivView {
 	gulong frame_update_connection;     ///< GdkFrameClock::update
 };
 
-G_DEFINE_TYPE(FastivView, fastiv_view, GTK_TYPE_WIDGET)
-
-static FastivIoOrientation view_left[9] = {
-	[FastivIoOrientationUnknown] = FastivIoOrientationUnknown,
-	[FastivIoOrientation0] = FastivIoOrientation270,
-	[FastivIoOrientationMirror0] = FastivIoOrientationMirror270,
-	[FastivIoOrientation180] = FastivIoOrientation90,
-	[FastivIoOrientationMirror180] = FastivIoOrientationMirror90,
-	[FastivIoOrientationMirror270] = FastivIoOrientationMirror180,
-	[FastivIoOrientation90] = FastivIoOrientation0,
-	[FastivIoOrientationMirror90] = FastivIoOrientationMirror0,
-	[FastivIoOrientation270] = FastivIoOrientation180
+G_DEFINE_TYPE(FivView, fiv_view, GTK_TYPE_WIDGET)
+
+static FivIoOrientation view_left[9] = {
+	[FivIoOrientationUnknown] = FivIoOrientationUnknown,
+	[FivIoOrientation0] = FivIoOrientation270,
+	[FivIoOrientationMirror0] = FivIoOrientationMirror270,
+	[FivIoOrientation180] = FivIoOrientation90,
+	[FivIoOrientationMirror180] = FivIoOrientationMirror90,
+	[FivIoOrientationMirror270] = FivIoOrientationMirror180,
+	[FivIoOrientation90] = FivIoOrientation0,
+	[FivIoOrientationMirror90] = FivIoOrientationMirror0,
+	[FivIoOrientation270] = FivIoOrientation180
 };
 
-static FastivIoOrientation view_mirror[9] = {
-	[FastivIoOrientationUnknown] = FastivIoOrientationUnknown,
-	[FastivIoOrientation0] = FastivIoOrientationMirror0,
-	[FastivIoOrientationMirror0] = FastivIoOrientation0,
-	[FastivIoOrientation180] = FastivIoOrientationMirror180,
-	[FastivIoOrientationMirror180] = FastivIoOrientation180,
-	[FastivIoOrientationMirror270] = FastivIoOrientation270,
-	[FastivIoOrientation90] = FastivIoOrientationMirror270,
-	[FastivIoOrientationMirror90] = FastivIoOrientation90,
-	[FastivIoOrientation270] = FastivIoOrientationMirror270
+static FivIoOrientation view_mirror[9] = {
+	[FivIoOrientationUnknown] = FivIoOrientationUnknown,
+	[FivIoOrientation0] = FivIoOrientationMirror0,
+	[FivIoOrientationMirror0] = FivIoOrientation0,
+	[FivIoOrientation180] = FivIoOrientationMirror180,
+	[FivIoOrientationMirror180] = FivIoOrientation180,
+	[FivIoOrientationMirror270] = FivIoOrientation270,
+	[FivIoOrientation90] = FivIoOrientationMirror270,
+	[FivIoOrientationMirror90] = FivIoOrientation90,
+	[FivIoOrientation270] = FivIoOrientationMirror270
 };
 
-static FastivIoOrientation view_right[9] = {
-	[FastivIoOrientationUnknown] = FastivIoOrientationUnknown,
-	[FastivIoOrientation0] = FastivIoOrientation90,
-	[FastivIoOrientationMirror0] = FastivIoOrientationMirror90,
-	[FastivIoOrientation180] = FastivIoOrientation270,
-	[FastivIoOrientationMirror180] = FastivIoOrientationMirror270,
-	[FastivIoOrientationMirror270] = FastivIoOrientationMirror0,
-	[FastivIoOrientation90] = FastivIoOrientation180,
-	[FastivIoOrientationMirror90] = FastivIoOrientationMirror180,
-	[FastivIoOrientation270] = FastivIoOrientation0
+static FivIoOrientation view_right[9] = {
+	[FivIoOrientationUnknown] = FivIoOrientationUnknown,
+	[FivIoOrientation0] = FivIoOrientation90,
+	[FivIoOrientationMirror0] = FivIoOrientationMirror90,
+	[FivIoOrientation180] = FivIoOrientation270,
+	[FivIoOrientationMirror180] = FivIoOrientationMirror270,
+	[FivIoOrientationMirror270] = FivIoOrientationMirror0,
+	[FivIoOrientation90] = FivIoOrientation180,
+	[FivIoOrientationMirror90] = FivIoOrientationMirror180,
+	[FivIoOrientation270] = FivIoOrientation0
 };
 
 enum {
@@ -94,19 +94,19 @@ enum {
 static GParamSpec *view_properties[N_PROPERTIES];
 
 static void
-fastiv_view_finalize(GObject *gobject)
+fiv_view_finalize(GObject *gobject)
 {
-	FastivView *self = FASTIV_VIEW(gobject);
+	FivView *self = FIV_VIEW(gobject);
 	cairo_surface_destroy(self->image);
 
-	G_OBJECT_CLASS(fastiv_view_parent_class)->finalize(gobject);
+	G_OBJECT_CLASS(fiv_view_parent_class)->finalize(gobject);
 }
 
 static void
-fastiv_view_get_property(
+fiv_view_get_property(
 	GObject *object, guint property_id, GValue *value, GParamSpec *pspec)
 {
-	FastivView *self = FASTIV_VIEW(object);
+	FivView *self = FIV_VIEW(object);
 	switch (property_id) {
 	case PROP_SCALE:
 		g_value_set_double(value, self->scale);
@@ -123,7 +123,7 @@ fastiv_view_get_property(
 }
 
 static void
-get_surface_dimensions(FastivView *self, double *width, double *height)
+get_surface_dimensions(FivView *self, double *width, double *height)
 {
 	*width = *height = 0;
 	if (!self->image)
@@ -133,10 +133,10 @@ get_surface_dimensions(FastivView *self, double *width, double *height)
 	switch (cairo_surface_get_type(self->page)) {
 	case CAIRO_SURFACE_TYPE_IMAGE:
 		switch (self->orientation) {
-		case FastivIoOrientation90:
-		case FastivIoOrientationMirror90:
-		case FastivIoOrientation270:
-		case FastivIoOrientationMirror270:
+		case FivIoOrientation90:
+		case FivIoOrientationMirror90:
+		case FivIoOrientation270:
+		case FivIoOrientationMirror270:
 			*width = cairo_image_surface_get_height(self->page);
 			*height = cairo_image_surface_get_width(self->page);
 			break;
@@ -160,7 +160,7 @@ get_surface_dimensions(FastivView *self, double *width, double *height)
 }
 
 static void
-get_display_dimensions(FastivView *self, int *width, int *height)
+get_display_dimensions(FivView *self, int *width, int *height)
 {
 	double w, h;
 	get_surface_dimensions(self, &w, &h);
@@ -170,37 +170,37 @@ get_display_dimensions(FastivView *self, int *width, int *height)
 }
 
 static cairo_matrix_t
-get_orientation_matrix(FastivIoOrientation o, double width, double height)
+get_orientation_matrix(FivIoOrientation o, double width, double height)
 {
 	cairo_matrix_t matrix = {};
 	cairo_matrix_init_identity(&matrix);
 	switch (o) {
-	case FastivIoOrientation90:
+	case FivIoOrientation90:
 		cairo_matrix_rotate(&matrix, -M_PI_2);
 		cairo_matrix_translate(&matrix, -width, 0);
 		break;
-	case FastivIoOrientation180:
+	case FivIoOrientation180:
 		cairo_matrix_scale(&matrix, -1, -1);
 		cairo_matrix_translate(&matrix, -width, -height);
 		break;
-	case FastivIoOrientation270:
+	case FivIoOrientation270:
 		cairo_matrix_rotate(&matrix, +M_PI_2);
 		cairo_matrix_translate(&matrix, 0, -height);
 		break;
-	case FastivIoOrientationMirror0:
+	case FivIoOrientationMirror0:
 		cairo_matrix_scale(&matrix, -1, +1);
 		cairo_matrix_translate(&matrix, -width, 0);
 		break;
-	case FastivIoOrientationMirror90:
+	case FivIoOrientationMirror90:
 		cairo_matrix_rotate(&matrix, +M_PI_2);
 		cairo_matrix_scale(&matrix, -1, +1);
 		cairo_matrix_translate(&matrix, -width, -height);
 		break;
-	case FastivIoOrientationMirror180:
+	case FivIoOrientationMirror180:
 		cairo_matrix_scale(&matrix, +1, -1);
 		cairo_matrix_translate(&matrix, 0, -height);
 		break;
-	case FastivIoOrientationMirror270:
+	case FivIoOrientationMirror270:
 		cairo_matrix_rotate(&matrix, -M_PI_2);
 		cairo_matrix_scale(&matrix, -1, +1);
 	default:
@@ -210,10 +210,9 @@ get_orientation_matrix(FastivIoOrientation o, double width, double height)
 }
 
 static void
-fastiv_view_get_preferred_height(
-	GtkWidget *widget, gint *minimum, gint *natural)
+fiv_view_get_preferred_height(GtkWidget *widget, gint *minimum, gint *natural)
 {
-	FastivView *self = FASTIV_VIEW(widget);
+	FivView *self = FIV_VIEW(widget);
 	if (self->scale_to_fit) {
 		double sw, sh;
 		get_surface_dimensions(self, &sw, &sh);
@@ -227,9 +226,9 @@ fastiv_view_get_preferred_height(
 }
 
 static void
-fastiv_view_get_preferred_width(GtkWidget *widget, gint *minimum, gint *natural)
+fiv_view_get_preferred_width(GtkWidget *widget, gint *minimum, gint *natural)
 {
-	FastivView *self = FASTIV_VIEW(widget);
+	FivView *self = FIV_VIEW(widget);
 	if (self->scale_to_fit) {
 		double sw, sh;
 		get_surface_dimensions(self, &sw, &sh);
@@ -243,12 +242,11 @@ fastiv_view_get_preferred_width(GtkWidget *widget, gint *minimum, gint *natural)
 }
 
 static void
-fastiv_view_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
+fiv_view_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
 {
-	GTK_WIDGET_CLASS(fastiv_view_parent_class)
-		->size_allocate(widget, allocation);
+	GTK_WIDGET_CLASS(fiv_view_parent_class)->size_allocate(widget, allocation);
 
-	FastivView *self = FASTIV_VIEW(widget);
+	FivView *self = FIV_VIEW(widget);
 	if (!self->image || !self->scale_to_fit)
 		return;
 
@@ -264,7 +262,7 @@ fastiv_view_size_allocate(GtkWidget *widget, GtkAllocation *allocation)
 }
 
 static void
-fastiv_view_realize(GtkWidget *widget)
+fiv_view_realize(GtkWidget *widget)
 {
 	GtkAllocation allocation;
 	gtk_widget_get_allocation(widget, &allocation);
@@ -312,7 +310,7 @@ fastiv_view_realize(GtkWidget *widget)
 }
 
 static gboolean
-fastiv_view_draw(GtkWidget *widget, cairo_t *cr)
+fiv_view_draw(GtkWidget *widget, cairo_t *cr)
 {
 	// Placed here due to our using a native GdkWindow on X11,
 	// which makes the widget have no double buffering or default background.
@@ -321,7 +319,7 @@ fastiv_view_draw(GtkWidget *widget, cairo_t *cr)
 	gtk_render_background(gtk_widget_get_style_context(widget), cr, 0, 0,
 		allocation.width, allocation.height);
 
-	FastivView *self = FASTIV_VIEW(widget);
+	FivView *self = FIV_VIEW(widget);
 	if (!self->image ||
 		!gtk_cairo_should_draw_window(cr, gtk_widget_get_window(widget)))
 		return TRUE;
@@ -386,10 +384,9 @@ fastiv_view_draw(GtkWidget *widget, cairo_t *cr)
 }
 
 static gboolean
-fastiv_view_button_press_event(GtkWidget *widget, GdkEventButton *event)
+fiv_view_button_press_event(GtkWidget *widget, GdkEventButton *event)
 {
-	GTK_WIDGET_CLASS(fastiv_view_parent_class)
-		->button_press_event(widget, event);
+	GTK_WIDGET_CLASS(fiv_view_parent_class)->button_press_event(widget, event);
 
 	if (event->button == GDK_BUTTON_PRIMARY &&
 		gtk_widget_get_focus_on_click(widget))
@@ -402,7 +399,7 @@ fastiv_view_button_press_event(GtkWidget *widget, GdkEventButton *event)
 #define SCALE_STEP 1.4
 
 static gboolean
-set_scale_to_fit(FastivView *self, bool scale_to_fit)
+set_scale_to_fit(FivView *self, bool scale_to_fit)
 {
 	self->scale_to_fit = scale_to_fit;
 
@@ -413,7 +410,7 @@ set_scale_to_fit(FastivView *self, bool scale_to_fit)
 }
 
 static gboolean
-set_scale(FastivView *self, double scale)
+set_scale(FivView *self, double scale)
 {
 	self->scale = scale;
 	g_object_notify_by_pspec(
@@ -422,9 +419,9 @@ set_scale(FastivView *self, double scale)
 }
 
 static gboolean
-fastiv_view_scroll_event(GtkWidget *widget, GdkEventScroll *event)
+fiv_view_scroll_event(GtkWidget *widget, GdkEventScroll *event)
 {
-	FastivView *self = FASTIV_VIEW(widget);
+	FivView *self = FIV_VIEW(widget);
 	if (!self->image)
 		return FALSE;
 	if (event->state & gtk_accelerator_get_default_mod_mask())
@@ -443,7 +440,7 @@ fastiv_view_scroll_event(GtkWidget *widget, GdkEventScroll *event)
 }
 
 static void
-stop_animating(FastivView *self)
+stop_animating(FivView *self)
 {
 	GdkFrameClock *clock = gtk_widget_get_frame_clock(GTK_WIDGET(self));
 	if (!clock || !self->frame_update_connection)
@@ -458,10 +455,10 @@ stop_animating(FastivView *self)
 }
 
 static gboolean
-advance_frame(FastivView *self)
+advance_frame(FivView *self)
 {
 	cairo_surface_t *next =
-		cairo_surface_get_user_data(self->frame, &fastiv_io_key_frame_next);
+		cairo_surface_get_user_data(self->frame, &fiv_io_key_frame_next);
 	if (next) {
 		self->frame = next;
 	} else {
@@ -474,13 +471,13 @@ advance_frame(FastivView *self)
 }
 
 static gboolean
-advance_animation(FastivView *self, GdkFrameClock *clock)
+advance_animation(FivView *self, GdkFrameClock *clock)
 {
 	gint64 now = gdk_frame_clock_get_frame_time(clock);
 	while (true) {
 		// TODO(p): See if infinite frames can actually happen, and how.
 		intptr_t duration = (intptr_t) cairo_surface_get_user_data(
-			self->frame, &fastiv_io_key_frame_duration);
+			self->frame, &fiv_io_key_frame_duration);
 		if (duration < 0)
 			return FALSE;
 
@@ -507,57 +504,56 @@ advance_animation(FastivView *self, GdkFrameClock *clock)
 static void
 on_frame_clock_update(GdkFrameClock *clock, gpointer user_data)
 {
-	FastivView *self = FASTIV_VIEW(user_data);
+	FivView *self = FIV_VIEW(user_data);
 	if (!advance_animation(self, clock))
 		stop_animating(self);
 }
 
 static void
-start_animating(FastivView *self)
+start_animating(FivView *self)
 {
 	stop_animating(self);
 
 	GdkFrameClock *clock = gtk_widget_get_frame_clock(GTK_WIDGET(self));
 	if (!clock || !self->image ||
-		!cairo_surface_get_user_data(self->page, &fastiv_io_key_frame_next))
+		!cairo_surface_get_user_data(self->page, &fiv_io_key_frame_next))
 		return;
 
 	self->frame_time = gdk_frame_clock_get_frame_time(clock);
 	self->frame_update_connection = g_signal_connect(
 		clock, "update", G_CALLBACK(on_frame_clock_update), self);
-	self->remaining_loops = (uintptr_t) cairo_surface_get_user_data(
-		self->page, &fastiv_io_key_loops);
+	self->remaining_loops =
+		(uintptr_t) cairo_surface_get_user_data(self->page, &fiv_io_key_loops);
 
 	gdk_frame_clock_begin_updating(clock);
 }
 
 static void
-switch_page(FastivView *self, cairo_surface_t *page)
+switch_page(FivView *self, cairo_surface_t *page)
 {
 	self->frame = self->page = page;
 	if ((self->orientation = (uintptr_t) cairo_surface_get_user_data(
-			 self->page, &fastiv_io_key_orientation)) ==
-		FastivIoOrientationUnknown)
-		self->orientation = FastivIoOrientation0;
+			self->page, &fiv_io_key_orientation)) == FivIoOrientationUnknown)
+		self->orientation = FivIoOrientation0;
 
 	start_animating(self);
 	gtk_widget_queue_resize(GTK_WIDGET(self));
 }
 
 static void
-fastiv_view_map(GtkWidget *widget)
+fiv_view_map(GtkWidget *widget)
 {
-	GTK_WIDGET_CLASS(fastiv_view_parent_class)->map(widget);
+	GTK_WIDGET_CLASS(fiv_view_parent_class)->map(widget);
 
 	// Loading before mapping will fail to obtain a GdkFrameClock.
-	start_animating(FASTIV_VIEW(widget));
+	start_animating(FIV_VIEW(widget));
 }
 
 void
-fastiv_view_unmap(GtkWidget *widget)
+fiv_view_unmap(GtkWidget *widget)
 {
-	stop_animating(FASTIV_VIEW(widget));
-	GTK_WIDGET_CLASS(fastiv_view_parent_class)->unmap(widget);
+	stop_animating(FIV_VIEW(widget));
+	GTK_WIDGET_CLASS(fiv_view_parent_class)->unmap(widget);
 }
 
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@@ -582,7 +578,7 @@ get_toplevel(GtkWidget *widget)
 
 static void
 on_draw_page(G_GNUC_UNUSED GtkPrintOperation *operation,
-	GtkPrintContext *context, G_GNUC_UNUSED int page_nr, FastivView *self)
+	GtkPrintContext *context, G_GNUC_UNUSED int page_nr, FivView *self)
 {
 	double surface_width_px = 0, surface_height_px = 0;
 	get_surface_dimensions(self, &surface_width_px, &surface_height_px);
@@ -606,7 +602,7 @@ on_draw_page(G_GNUC_UNUSED GtkPrintOperation *operation,
 }
 
 static gboolean
-print(FastivView *self)
+print(FivView *self)
 {
 	GtkPrintOperation *print = gtk_print_operation_new();
 	gtk_print_operation_set_n_pages(print, 1);
@@ -636,7 +632,7 @@ print(FastivView *self)
 }
 
 static gboolean
-save_as(FastivView *self, gboolean frame)
+save_as(FivView *self, gboolean frame)
 {
 	GtkWindow *window = get_toplevel(GTK_WIDGET(self));
 	GtkWidget *dialog = gtk_file_chooser_dialog_new(
@@ -680,11 +676,10 @@ save_as(FastivView *self, gboolean frame)
 		GError *error = NULL;
 #ifdef HAVE_LIBWEBP
 		if (gtk_file_chooser_get_filter(chooser) == webp_filter)
-			fastiv_io_save(self->page,
-				frame ? self->frame : NULL, path, &error);
+			fiv_io_save(self->page, frame ? self->frame : NULL, path, &error);
 		else
 #endif  // HAVE_LIBWEBP
-			fastiv_io_save_metadata(self->page, path, &error);
+			fiv_io_save_metadata(self->page, path, &error);
 		if (error)
 			show_error_dialog(window, error);
 		g_free(path);
@@ -701,16 +696,16 @@ save_as(FastivView *self, gboolean frame)
 // - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
 
 static inline gboolean
-command(FastivView *self, FastivViewCommand command)
+command(FivView *self, FivViewCommand command)
 {
-	fastiv_view_command(self, command);
+	fiv_view_command(self, command);
 	return TRUE;
 }
 
 static gboolean
-fastiv_view_key_press_event(GtkWidget *widget, GdkEventKey *event)
+fiv_view_key_press_event(GtkWidget *widget, GdkEventKey *event)
 {
-	FastivView *self = FASTIV_VIEW(widget);
+	FivView *self = FIV_VIEW(widget);
 	if (!self->image)
 		return FALSE;
 
@@ -722,15 +717,15 @@ fastiv_view_key_press_event(GtkWidget *widget, GdkEventKey *event)
 	if (state == GDK_CONTROL_MASK) {
 		switch (event->keyval) {
 		case GDK_KEY_0:
-			return command(self, FASTIV_VIEW_COMMAND_ZOOM_1);
+			return command(self, FIV_VIEW_COMMAND_ZOOM_1);
 		case GDK_KEY_plus:
-			return command(self, FASTIV_VIEW_COMMAND_ZOOM_IN);
+			return command(self, FIV_VIEW_COMMAND_ZOOM_IN);
 		case GDK_KEY_minus:
-			return command(self, FASTIV_VIEW_COMMAND_ZOOM_OUT);
+			return command(self, FIV_VIEW_COMMAND_ZOOM_OUT);
 		case GDK_KEY_p:
-			return command(self, FASTIV_VIEW_COMMAND_PRINT);
+			return command(self, FIV_VIEW_COMMAND_PRINT);
 		case GDK_KEY_s:
-			return command(self, FASTIV_VIEW_COMMAND_SAVE_PAGE);
+			return command(self, FIV_VIEW_COMMAND_SAVE_PAGE);
 		case GDK_KEY_S:
 			return save_as(self, TRUE);
 		}
@@ -750,9 +745,9 @@ fastiv_view_key_press_event(GtkWidget *widget, GdkEventKey *event)
 	case GDK_KEY_9:
 		return set_scale(self, event->keyval - GDK_KEY_0);
 	case GDK_KEY_plus:
-		return command(self, FASTIV_VIEW_COMMAND_ZOOM_IN);
+		return command(self, FIV_VIEW_COMMAND_ZOOM_IN);
 	case GDK_KEY_minus:
-		return command(self, FASTIV_VIEW_COMMAND_ZOOM_OUT);
+		return command(self, FIV_VIEW_COMMAND_ZOOM_OUT);
 
 	case GDK_KEY_x:  // Inspired by gThumb.
 		return set_scale_to_fit(self, !self->scale_to_fit);
@@ -765,31 +760,31 @@ fastiv_view_key_press_event(GtkWidget *widget, GdkEventKey *event)
 		return TRUE;
 
 	case GDK_KEY_less:
-		return command(self, FASTIV_VIEW_COMMAND_ROTATE_LEFT);
+		return command(self, FIV_VIEW_COMMAND_ROTATE_LEFT);
 	case GDK_KEY_equal:
-		return command(self, FASTIV_VIEW_COMMAND_MIRROR);
+		return command(self, FIV_VIEW_COMMAND_MIRROR);
 	case GDK_KEY_greater:
-		return command(self, FASTIV_VIEW_COMMAND_ROTATE_RIGHT);
+		return command(self, FIV_VIEW_COMMAND_ROTATE_RIGHT);
 
 	case GDK_KEY_bracketleft:
-		return command(self, FASTIV_VIEW_COMMAND_PAGE_PREVIOUS);
+		return command(self, FIV_VIEW_COMMAND_PAGE_PREVIOUS);
 	case GDK_KEY_bracketright:
-		return command(self, FASTIV_VIEW_COMMAND_PAGE_NEXT);
+		return command(self, FIV_VIEW_COMMAND_PAGE_NEXT);
 
 	case GDK_KEY_braceleft:
-		return command(self, FASTIV_VIEW_COMMAND_FRAME_PREVIOUS);
+		return command(self, FIV_VIEW_COMMAND_FRAME_PREVIOUS);
 	case GDK_KEY_braceright:
-		return command(self, FASTIV_VIEW_COMMAND_FRAME_NEXT);
+		return command(self, FIV_VIEW_COMMAND_FRAME_NEXT);
 	}
 	return FALSE;
 }
 
 static void
-fastiv_view_class_init(FastivViewClass *klass)
+fiv_view_class_init(FivViewClass *klass)
 {
 	GObjectClass *object_class = G_OBJECT_CLASS(klass);
-	object_class->finalize = fastiv_view_finalize;
-	object_class->get_property = fastiv_view_get_property;
+	object_class->finalize = fiv_view_finalize;
+	object_class->get_property = fiv_view_get_property;
 
 	view_properties[PROP_SCALE] = g_param_spec_double(
 		"scale", "Scale", "Zoom level",
@@ -804,24 +799,24 @@ fastiv_view_class_init(FastivViewClass *klass)
 		object_class, N_PROPERTIES, view_properties);
 
 	GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
-	widget_class->get_preferred_height = fastiv_view_get_preferred_height;
-	widget_class->get_preferred_width = fastiv_view_get_preferred_width;
-	widget_class->size_allocate = fastiv_view_size_allocate;
-	widget_class->map = fastiv_view_map;
-	widget_class->unmap = fastiv_view_unmap;
-	widget_class->realize = fastiv_view_realize;
-	widget_class->draw = fastiv_view_draw;
-	widget_class->button_press_event = fastiv_view_button_press_event;
-	widget_class->scroll_event = fastiv_view_scroll_event;
-	widget_class->key_press_event = fastiv_view_key_press_event;
+	widget_class->get_preferred_height = fiv_view_get_preferred_height;
+	widget_class->get_preferred_width = fiv_view_get_preferred_width;
+	widget_class->size_allocate = fiv_view_size_allocate;
+	widget_class->map = fiv_view_map;
+	widget_class->unmap = fiv_view_unmap;
+	widget_class->realize = fiv_view_realize;
+	widget_class->draw = fiv_view_draw;
+	widget_class->button_press_event = fiv_view_button_press_event;
+	widget_class->scroll_event = fiv_view_scroll_event;
+	widget_class->key_press_event = fiv_view_key_press_event;
 
 	// TODO(p): Later override "screen_changed", recreate Pango layouts there,
 	// if we get to have any, or otherwise reflect DPI changes.
-	gtk_widget_class_set_css_name(widget_class, "fastiv-view");
+	gtk_widget_class_set_css_name(widget_class, "fiv-view");
 }
 
 static void
-fastiv_view_init(FastivView *self)
+fiv_view_init(FivView *self)
 {
 	gtk_widget_set_can_focus(GTK_WIDGET(self), TRUE);
 
@@ -833,9 +828,9 @@ fastiv_view_init(FastivView *self)
 
 // TODO(p): Progressive picture loading, or at least async/cancellable.
 gboolean
-fastiv_view_open(FastivView *self, const gchar *path, GError **error)
+fiv_view_open(FivView *self, const gchar *path, GError **error)
 {
-	cairo_surface_t *surface = fastiv_io_open(path, error);
+	cairo_surface_t *surface = fiv_io_open(path, error);
 	if (!surface)
 		return FALSE;
 	if (self->image)
@@ -849,75 +844,75 @@ fastiv_view_open(FastivView *self, const gchar *path, GError **error)
 }
 
 static void
-page_step(FastivView *self, int step)
+page_step(FivView *self, int step)
 {
 	cairo_user_data_key_t *key =
-		step < 0 ? &fastiv_io_key_page_previous : &fastiv_io_key_page_next;
+		step < 0 ? &fiv_io_key_page_previous : &fiv_io_key_page_next;
 	cairo_surface_t *page = cairo_surface_get_user_data(self->page, key);
 	if (page)
 		switch_page(self, page);
 }
 
 static void
-frame_step(FastivView *self, int step)
+frame_step(FivView *self, int step)
 {
 	stop_animating(self);
 	cairo_user_data_key_t *key =
-		step < 0 ? &fastiv_io_key_frame_previous : &fastiv_io_key_frame_next;
+		step < 0 ? &fiv_io_key_frame_previous : &fiv_io_key_frame_next;
 	if (!step || !(self->frame = cairo_surface_get_user_data(self->frame, key)))
 		self->frame = self->page;
 	gtk_widget_queue_draw(GTK_WIDGET(self));
 }
 
 void
-fastiv_view_command(FastivView *self, FastivViewCommand command)
+fiv_view_command(FivView *self, FivViewCommand command)
 {
-	g_return_if_fail(FASTIV_IS_VIEW(self));
+	g_return_if_fail(FIV_IS_VIEW(self));
 
 	GtkWidget *widget = GTK_WIDGET(self);
 	if (!self->image)
 		return;
 
 	switch (command) {
-	break; case FASTIV_VIEW_COMMAND_ROTATE_LEFT:
+	break; case FIV_VIEW_COMMAND_ROTATE_LEFT:
 		self->orientation = view_left[self->orientation];
 		gtk_widget_queue_resize(widget);
-	break; case FASTIV_VIEW_COMMAND_MIRROR:
+	break; case FIV_VIEW_COMMAND_MIRROR:
 		self->orientation = view_mirror[self->orientation];
 		gtk_widget_queue_resize(widget);
-	break; case FASTIV_VIEW_COMMAND_ROTATE_RIGHT:
+	break; case FIV_VIEW_COMMAND_ROTATE_RIGHT:
 		self->orientation = view_right[self->orientation];
 		gtk_widget_queue_resize(widget);
 
-	break; case FASTIV_VIEW_COMMAND_PAGE_FIRST:
+	break; case FIV_VIEW_COMMAND_PAGE_FIRST:
 		switch_page(self, self->image);
-	break; case FASTIV_VIEW_COMMAND_PAGE_PREVIOUS:
+	break; case FIV_VIEW_COMMAND_PAGE_PREVIOUS:
 		page_step(self, -1);
-	break; case FASTIV_VIEW_COMMAND_PAGE_NEXT:
+	break; case FIV_VIEW_COMMAND_PAGE_NEXT:
 		page_step(self, +1);
-	break; case FASTIV_VIEW_COMMAND_PAGE_LAST:
+	break; case FIV_VIEW_COMMAND_PAGE_LAST:
 		for (cairo_surface_t *s = self->page;
-			 (s = cairo_surface_get_user_data(s, &fastiv_io_key_page_next)); )
+			 (s = cairo_surface_get_user_data(s, &fiv_io_key_page_next)); )
 			self->page = s;
 		switch_page(self, self->page);
 
-	break; case FASTIV_VIEW_COMMAND_FRAME_FIRST:
+	break; case FIV_VIEW_COMMAND_FRAME_FIRST:
 		frame_step(self, 0);
-	break; case FASTIV_VIEW_COMMAND_FRAME_PREVIOUS:
+	break; case FIV_VIEW_COMMAND_FRAME_PREVIOUS:
 		frame_step(self, -1);
-	break; case FASTIV_VIEW_COMMAND_FRAME_NEXT:
+	break; case FIV_VIEW_COMMAND_FRAME_NEXT:
 		frame_step(self, +1);
 
-	break; case FASTIV_VIEW_COMMAND_PRINT:
+	break; case FIV_VIEW_COMMAND_PRINT:
 		print(self);
-	break; case FASTIV_VIEW_COMMAND_SAVE_PAGE:
+	break; case FIV_VIEW_COMMAND_SAVE_PAGE:
 		save_as(self, FALSE);
 
-	break; case FASTIV_VIEW_COMMAND_ZOOM_IN:
+	break; case FIV_VIEW_COMMAND_ZOOM_IN:
 		set_scale(self, self->scale * SCALE_STEP);
-	break; case FASTIV_VIEW_COMMAND_ZOOM_OUT:
+	break; case FIV_VIEW_COMMAND_ZOOM_OUT:
 		set_scale(self, self->scale / SCALE_STEP);
-	break; case FASTIV_VIEW_COMMAND_ZOOM_1:
+	break; case FIV_VIEW_COMMAND_ZOOM_1:
 		set_scale(self, 1.0);
 	}
 }
diff --git a/fastiv-view.h b/fiv-view.h
index 20ff445..92c89e9 100644
--- a/fastiv-view.h
+++ b/fiv-view.h
@@ -1,5 +1,5 @@
 //
-// fastiv-view.h: fast image viewer - view widget
+// fiv-view.h: fast image viewer - view widget
 //
 // Copyright (c) 2021, Přemysl Eric Janouch <p@janouch.name>
 //
@@ -19,34 +19,34 @@
 
 #include <gtk/gtk.h>
 
-#define FASTIV_TYPE_VIEW (fastiv_view_get_type())
-G_DECLARE_FINAL_TYPE(FastivView, fastiv_view, FASTIV, VIEW, GtkWidget)
+#define FIV_TYPE_VIEW (fiv_view_get_type())
+G_DECLARE_FINAL_TYPE(FivView, fiv_view, FIV, VIEW, GtkWidget)
 
 /// Try to open the given file, synchronously, to be displayed by the widget.
-gboolean fastiv_view_open(FastivView *self, const gchar *path, GError **error);
+gboolean fiv_view_open(FivView *self, const gchar *path, GError **error);
 
-typedef enum _FastivViewCommand {
-	FASTIV_VIEW_COMMAND_ROTATE_LEFT = 1,
-	FASTIV_VIEW_COMMAND_MIRROR,
-	FASTIV_VIEW_COMMAND_ROTATE_RIGHT,
+typedef enum _FivViewCommand {
+	FIV_VIEW_COMMAND_ROTATE_LEFT = 1,
+	FIV_VIEW_COMMAND_MIRROR,
+	FIV_VIEW_COMMAND_ROTATE_RIGHT,
 
-	FASTIV_VIEW_COMMAND_PAGE_FIRST,
-	FASTIV_VIEW_COMMAND_PAGE_PREVIOUS,
-	FASTIV_VIEW_COMMAND_PAGE_NEXT,
-	FASTIV_VIEW_COMMAND_PAGE_LAST,
+	FIV_VIEW_COMMAND_PAGE_FIRST,
+	FIV_VIEW_COMMAND_PAGE_PREVIOUS,
+	FIV_VIEW_COMMAND_PAGE_NEXT,
+	FIV_VIEW_COMMAND_PAGE_LAST,
 
-	FASTIV_VIEW_COMMAND_FRAME_FIRST,
-	FASTIV_VIEW_COMMAND_FRAME_PREVIOUS,
-	FASTIV_VIEW_COMMAND_FRAME_NEXT,
+	FIV_VIEW_COMMAND_FRAME_FIRST,
+	FIV_VIEW_COMMAND_FRAME_PREVIOUS,
+	FIV_VIEW_COMMAND_FRAME_NEXT,
 	// Going to the end frame makes no sense, wrap around if needed.
 
-	FASTIV_VIEW_COMMAND_PRINT,
-	FASTIV_VIEW_COMMAND_SAVE_PAGE,
+	FIV_VIEW_COMMAND_PRINT,
+	FIV_VIEW_COMMAND_SAVE_PAGE,
 
-	FASTIV_VIEW_COMMAND_ZOOM_IN,
-	FASTIV_VIEW_COMMAND_ZOOM_OUT,
-	FASTIV_VIEW_COMMAND_ZOOM_1
-} FastivViewCommand;
+	FIV_VIEW_COMMAND_ZOOM_IN,
+	FIV_VIEW_COMMAND_ZOOM_OUT,
+	FIV_VIEW_COMMAND_ZOOM_1
+} FivViewCommand;
 
 /// Execute a user action.
-void fastiv_view_command(FastivView *self, FastivViewCommand command);
+void fiv_view_command(FivView *self, FivViewCommand command);
diff --git a/meson.build b/meson.build
index 6ed86d2..0cabcc4 100644
--- a/meson.build
+++ b/meson.build
@@ -1,3 +1,4 @@
+# vim: noet ts=4 sts=4 sw=4:
 project('fastiv', 'c',
 	default_options : ['c_std=gnu99', 'warning_level=2'],
 	version : '0.1.0')
@@ -65,13 +66,13 @@ resources = gnome.compile_resources('resources',
 	c_name : 'resources',
 )
 
-exe = executable('fastiv', 'fastiv.c', 'fastiv-view.c', 'fastiv-io.c',
-	'fastiv-browser.c', 'fastiv-sidebar.c', 'xdg.c', resources,
+exe = executable('fastiv', 'fastiv.c', 'fiv-view.c', 'fiv-io.c',
+	'fiv-browser.c', 'fiv-sidebar.c', 'xdg.c', resources,
 	install : true,
 	dependencies : [dependencies])
 
 if gdkpixbuf.found()
-	executable('io-benchmark', 'fastiv-io-benchmark.c', 'fastiv-io.c', 'xdg.c',
+	executable('io-benchmark', 'fiv-io-benchmark.c', 'fiv-io.c', 'xdg.c',
 		build_by_default : false,
 		dependencies : [dependencies, gdkpixbuf])
 endif