Notes:

Who needs advanced painting programs and gears when you can have a free one by just installing a free game engine that comes with playable maps (and an extremely toxic community)?
Well, here's the game if you want to test yourself (Although I don't even know where to paint, but I guess you can figure it out)
https://www.roblox.com/games/153353118/Free-Draw
Although if you don't want to be annoyed by people drawing skulls on your art, then you need to go to this instead (although you need to join their group to do anything)
https://www.roblox.com/games/398518074/Free-Draw-SAFE