Glossary
Mask
A vector path on a layer that limits what part of it is visible. Feather softens the edge; mask modes add, subtract and intersect several paths.
In Premation
The mask tools live in the toolbar flyout next to the shape tools. Seven mask modes, and an effect can be scoped to a mask region.
Read the docs: Masks and mattes
Related terms
Try it in PremationFree · AGPL-3.0-only · macOS & Windows