--- a/src/main-sdl2.c
+++ b/src/main-sdl2.c
@@ -4548,15 +4548,8 @@
 
 static void load_default_window_icon(const struct window *window)
 {
-	char path[4096];
-	path_build(path, sizeof(path), DEFAULT_WINDOW_ICON_DIR, DEFAULT_WINDOW_ICON);
-
-	SDL_Surface *surface = IMG_Load(path);
-	assert(surface != NULL);
-
-	SDL_SetWindowIcon(window->window, surface);
-
-	SDL_FreeSurface(surface);
+	/* Web build: the canvas has no window icon, and lib/icons is left out. */
+	(void) window;
 }
 
 static void load_graphics(struct window *window, graphics_mode *mode)
@@ -6121,9 +6114,9 @@
 		return 1;
 	}
 
-	if (!read_config_file()) {
-		create_defaults();
-	}
+	/* Web build: always start from the default layout. The saved one is written
+	 * when the page is closed, with whatever size the canvas has by then. */
+	create_defaults();
 
 	start_windows();
 	load_terms();
@@ -6296,6 +6289,9 @@
 
 static void dump_config_file(void)
 {
+	/* Web build: the window layout is not saved (see init_sdl2()). */
+	return;
+
 	ang_file *config = file_open(g_config_file, MODE_WRITE, FTYPE_TEXT);
 
 	assert(config != NULL);
--- a/lib/tiles/list.txt
+++ b/lib/tiles/list.txt
@@ -54,15 +54,3 @@
 size:16:16:8x16.png
 pref:graf-nmd.prf
 extra:0:0:0
-
-name:5:Shockbolt Dark
-directory:shockbolt
-size:64:64:64x64.png
-pref:graf-shb-dark.prf
-extra:1:27:31
-
-name:6:Shockbolt Light
-directory:shockbolt
-size:64:64:64x64.png
-pref:graf-shb-light.prf
-extra:1:27:31