You tap each square to get the shade of black, white, or grey you want. The changes are auto-cloud changes, so you can watch what you do, live-action, from another account.
All Credit to @Zer0_TV {{{YOU MUST BE AN OFFICIAL SCRATCHER ON YOUR ACCOUNT PROFILE TO ACCESS THE CLOUD VARIABLES}}} (it won't work unless you're a scratcher) -------------------------------------------------------------------- Version 2 (2 New Pixels!) Future Updates: -More Pixels (Tiles) -Music -More Colors