Historic brush

This Historic Brush image\ppHistory.gif on the Tools bar, enables you to reverse the last operation performed on an image. In this it is like the Undo command but limited to undoing the last operation only. However, unlike Undo the Historic Brush allows you to partially recover pixels from the result of the last complete operation rather than recover the whole result. (By "complete operation" is meant the action carried out between one click of the mouse and the next click.) The Historic Brush can be used in conjunction with the History palette to recover the state before a previous incarnation of an image (see History palette).

See:

Paint Tools

Typing_and_color_fill_tools