ogga lily:Thanks guys for the Alt key trick. What I meant was use the paint BUCKET rather than the brush, which would indeed be tedious. But Alt is still faster than the bucket.
However you don't really need to go near the paint bucket....
Option/Alt backspace will fill with foreground colour
Command/Ctrl backspace will fill with background
(Or maybe the other way round - I remember the keystrokes by position so it's possible they are the other way round on PCs because the keys are in a different order.)
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