Nounfall is drawn exclusively from the 234 heads and 21 glasses that are used to build the current Nouns collection. The background colors are all pulled from the blessed Noun palette.
This is ok because Nouns are CC0, which basically means public domain. Check out nouns.wtf for more info.
They make for fun social media banners when cropped, if you wanna show off you fandom of Nouns.
C : Clear screen and start animation over S : Save current image 1 -> 6 : Set pixel density to the respective number
So, if you want a high resolution file, tap `6` for it to redraw, and then `S` to save. You can also save while it's animating if you like, which is fun too.