Invert flips the channels you pick. Color and alpha are separate switches because inverting a matte is a different job from inverting a picture, and you can do both at once.
Parameters
| Name | What it does | Default / range |
|---|---|---|
| RGB | Flip the color channels. | On |
| Alpha | Flip coverage, giving an inverted matte. | Off |
| Amount | Mix back toward the original. 0 = bypass. | 100, 0–100 |