Update: Important thing to do before using the Auto Action
1. Go to your Shortcut Settings. (File > Shortcut Settings or Ctrl+Alt+Shift+K)
2. From Menu Commands Category, scroll down to the Layer Order sections and add shortcut to Up and Down.

How to use:
1. Make sure to separate and merge your Line and Color layer respectively

2. Select Color Layer and press play

3. And.... It's done!!!

Examples of my artwork Before and After using the Auto Action
I personally love using texture brushes to paint my artwork and the result after using the Auto Action


Old version