Thanks, but no, i didn't meant any changes to transparency handling in the program or actions with background colors in project, i offered as i said ability to switch "do not move pixels with [255,255,255,|any|] color" to selection tools,
I do know how to use layers and they are main reason why probably going to use Pant.net instead of MS Paint, it doesn't anyhow connected to the addition, the enchantment is functionality for selection system, which can't be substituted with same working speed by layers system.