What I'd really like to figure out to do is how to set the transparency to overlay painted objects over the existing material colors like the different colors of organic things like tree bark, plant parts, so that my plant props look more natural. Basically, just to add simple accents that also reveal the underlying material colors already applied to the plant parts. I need to figure out how to use Paint.nets alpha channel mask controls to save an image that would allow transparent areas where the original material colors should show through. If I can figure it out then my plant textures could be relatively easy paint and quite simple to paint.