Painting question

I painted a hand green without thinking, and now I want to paint over it. Without undoing, how can I remove the color/paint over it? There’s probably I really simple answer but I can’t figure it out.


Is very easy to do. You can do one of this:
1. In the tool properties of the paint tool select the unpaint icon the last in the paint mode button, an make click on the painted zone with the paint tool (now changed as unpaint mode).
2. You can select paint and not the paint unpainted default mode, and simply paint againg using other color.
3. With the select tool, select the filled zone an delete it, now apply other color.

Hope that helps.