Hey, new user here, started playing with Greater blend mode, thought tho, maybe there is an ability to erase lower alphas with pressure sensitivity? Let say there is a cube wireframe:
http://image.prntscr.com/image/459aec7a ... 8a8a52.png

I'd like to erase grey lines and leave only black ones. Thought maybe I could change color to white and paint on top? Kinda works, buut it still applies alpha layer, so little pressure doesn't fully erase the lines:

http://image.prntscr.com/image/42662ead ... 1d235d.png

Halp