Fix/Update paint bucket tool

Thanks for the idea. Could you share an example or two of exactly what you are trying to do, and how you would like it to work?

You can also adjust the tolerance setting in the options bar between 0 and 255.  Higher numbers cover up the gap against anti-aliased edges, although go too high and the fill can spill over thin lines.

Dave

"(The other two suggestions are rather vague and I do not understand how exactly that is supposed to work.)"

I tried to keep it short and readable but I get that. 

Better fix: I'd just think with what photoshop/adobe AI tools are now doing, it'd be easy to have the fill tool automatically know that the less opaque pixels between the line and fill area are just the brush/pixel transition. So it fills this area with the colour while keeping the same black 'transition' pixels on top.

Background color selection: Say you're colouring on a white background, you set this setting/puppet pin it to a white colour, and then the bucket tools knows it can remove all of white or slightly white pixels in between the fill and lines

Expand by X pixels would be useful. That option should be added. Could be added to the Magic Wand as well (since it works the same way as the fill bucket).

The current workaround for filling in line art (on a layer below the lines) is to use Magic Wand + Expand + Fill (possibly recorded as an action to prevent you going mad). Should not be nescessary.

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(The other two suggestions are rather vague and I do not understand how exactly that is supposed to work.)