The patch I just added is very minimal, so it might not be worth your trouble, but it does have one minor feature addition: you can now set the screen saver to use a "grey" color scheme which is the original artwork, with just slight adjustments to lightness to keep the bunnies from looking too samey.

The shader that does this is dirt simple, by the way: I just multiply each color channel by a fixed number to get a new color.  Similar means will be (hopefully) used later to do different-color clothing etc.

I also fixed some little things such as: hi-dpi setting for 4k monitors (inexcusable since I use one), ear sprites rotate around the head better, etc...