@AjayDoshi, No this does not address the main concern of being able to color over or erase the outline. Changing the outline color changes the outline for the entire image, but you may only need the color changed in a specific area.

I have asked & asked for no lines to be an option. Other coloring apps allow removing the lines, once coloring is finished, before publishing. I rarely use Pigment anymore due to the outlines.

This lets us change outline colour as a whole, however it would be great to let us paint over outlines in a way that would let us incorporate them into the painted drawing so they would just be invisible - a drawing without the outlines
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Hello! Pigment has the ability to change the outline color on any drawing that has recognizable line art. This feature is accessible by accessing the Color Palette selector and then Select 'Outline' which is the bottom rightmost option.

Does this help achieve what you are looking for?