This is a fun, simple wallpaper. I was trying to keep it from being too annoying, but also still look cool. At some point I may have it follow the current theme colors. But for now it just uses the spritesheet. It runs idle at around 0.3% CPU and maxes out around 4% or 5% CPU.
You can add this to your Picotron wallpapers by typing this in Terminal (which assumes you've already created a /appdata/system/wallpapers folder):
If you want them, I also made three other variations: Fire, Rainbow, and one that follows your theme.