[Suggestion] Invert brushes/draw transparent

[Qualzar]

A feature I frequently used within Clip and Sai was the ability to invert a brush so you could use it as an eraser. I found it particularly useful for texturing or when airbrushing, but especially for airbrushing. I was able to quickly maintain the size and opacity of the brush without having to roughly mirror the settings to my soft eraser

[Lucky Clan]

There are few ways to do it:
1. When Paint or Wet Paint tool is active, just long press Eraser icon in the top toolbar.
2. If you have Magic Keyboard, keep the top-right key (tilda) pressed.
3. Open tool settings panel and change blending to Clear. You can also add this action to the top toolbar or Quick Menu for quicker access.