Script-Fu -> Prepare for Colorize

This is a non-adjustable script
it prepares line art to be colorized.

To colorize line art, the best way is to make a new transparent layer and set it to be in "multiply" mode. That's really all this does... saves you a few steps and makes it easy if you colorize a section or two at a time. (Flatten image when you get a section done, then colorize prep again... just a lot less clicking and won't forget multiply mode or whatever.)

When line art is colorized in this manner, you can use the brush (at 100% opacity, for consistency) and draw right over the black line art edges. See below:

Script-FU > Prepare for Colorize

;  This script should be placed 
;  in the user or system-wide script folder.
;
;  Windows Vista/7/8/10)
;  C:\Program Files\GIMP 2\share\gimp\2.0\scripts
;  or
;  C:\Users\YOUR-NAME\.gimp-2.8\scripts
; 
;  Windows XP
;  C:\Program Files\GIMP 2\share\gimp\2.0\scripts
;  or
;  C:\Documents and Settings\yourname\.gimp-2.8\scripts   
; 
;  Linux
;  /home/yourname/.gimp-2.8/scripts  
;