Fix for brush not working.

[Unsheathed_Claws]

I work on a Macbook Air and I am a animator. When I noticed my brush tool was not working I did what any one would do: looked up a solution online. I started to feel discouraged because while I could find answers, the answers didn't help me. then I noticed my mode was on "burn" switching this to linear burn completely fixed this. Hope it helps

[JJMack · Accepted solution]

That a common thing user find out like painting white on white.