[Unerase ?]

Thanks for the quick response. I think some sort of alt-key behavior w/ the eraser would be really cool. Maybe eraser+alt sets the alpha to the gray value of the currently selected foreground color in the tools palette.

[Unerase ?]

I understand that the eraser tool sets a layer's alpha to zero. Is the image information discarded at this point, or is there a way to unerase? Some sort of "paint on alpha" tool would be cool. Sorry if this has already been discussed. I tried to search, really :-)