Filling linework with color?

[Tesaphine]

I do comic-style art with very thick bold lines. When I color, I simply block in a space with solid color, and use masks and filters to shade or blend. Right now, the only way I can color in an empty space is to do it by hand with a brush tool by making another layer underneath the linework, and carefully line the edges so it's a solid block of color. The paint bucket tool will leave a small area around the linework of empty space, otherwise I would use it instead. Below are examples of what I'm talking about.

Colored by hand using the brush tool (color layer is underneath the linework layer):

Colored using the paint bucket tool (all one layer):

If I could use the paint bucket tool or something similar to just drop colors in wherever I need them instead of having to hand-paint it all in, it would cut my drawing time in half.

Anyone have some suggestions? Thanks in advance.

[Bojan Živković]

Have you tried with All Layers turned on for Paint Bucket tool to paint on layer below? I do not see any problem while testing. What are Brush Setings?

[Tesaphine]

This helps a TON. It still has little pieces that don't seem to quite get filled in but those are easy fixes by hand. Thanks so much!

[chanaart]

Create a  new top layer with the line art. change the blending mode to Multiply. 

now few options: 

Select the area  with the magic wand and create a Fill layer. Or add another layer and fill it with the color!

[Jumpenjax]

You could try double fill the bucket. Just click twice?

[Earth Oliver]

This has been a feature request for about 25 years now, so there's a near certainty that it will never be implemented.