Support for GIF Wallpapers. (#727)

.config/ags/scripts/color_generation/generate_colors_material.py

@@ -63,6 +63,10 @@ transparent = (args.transparency == 'transparent')
 
 if args.path is not None:
     image = Image.open(args.path)
+
+    if image.format == "GIF":
+        image.seek(1)
+    
     wsize, hsize = image.size
     wsize_new, hsize_new = calculate_optimal_size(wsize, hsize, args.size)
     if wsize_new < wsize or hsize_new < hsize: