Very good pixel art editor, i use it a lot in unity 2d

Should be a 5 - it's highly influenced by Aseprite (which is commercial tool highly regarded by professionals), and is incredibly feature rich and intuitive for creating pixel art. Why only 4 then? HORRIBLE performance/optimisation. For such a relatively simple program, it should not stutter, lag or leave screen artifacts between refreshes.

a super pixel art editor, simple and efficient