speeds up the underfill process.
It works with brushes that have texture, but a simple round brush might work best.
- Raster layers Only.
- Any color can be used
Use:
- Draw a closed figure (no gaps in the linework)
- Press the auto action button

Linework should be created using the Main drawing color; the base color fill will be created using the Sub drawing color of your choosing. 


Adjust the layer order to create the underfill effect.
Tip: Since the auto-action repeats names each time its used, rename the layers accordingly to avoid confusion.