You know what to do. Contributions welcome.
i did that one years ago. have to try myself first
you'll need to change the coulor of the left half to match the right and it will get really complicated after that. a lot of crazy flips.
big pixels top right, small pixels buttom right, win pixels are a pain
I managed after randomly clicking a few times, no idea which ones I used, or in which order, just that it was the flips, the M+/- and the FL and suddenly the picture was there! Is there a way in Gmask to see what order you used?
scrub, and i did this the first time today