Gimp usage: Alpha Lock?

[sneakthief]

Hey folks. Real quick question...how do I use alpha lock to 'color inside the lines'? I can use it to color lines, but I haven't yet figured out how to make it so that I only color within my lineart. Any solutions out there?

Currently, all my layers are Normal, and go in this order

LINEARTS
sketch
Background

[troyards]

the gimp alpha lock, much like the oekaki's, requires something to be on the layer that you're going to color on.
make a new layer under your lines, color in on the inside of it as neat as you can, and switch on the alpha lock.

it should work. i only use gimp to cut it stock pictures now-a-days.