linesmooting UI colors

[Peter Wassink]

the UI color (HUD) of the Line Smoothing "Pulledstring" option is always the same as the A color.
My request is to have it be a complementary color to whatever the color is of the pixels it is over.
Because now if you pull the line through an area with the same color as the A color the UI completely vanishes and you can't tell where your brush tip is!

[Dean]

Hello Peter, this is a very good idea, I added it to the tracker.