Fast Crop filter not working properly on objects with alfa channel.
The new Fast Crop filter uses a Composite effect with the Over operator. It is supposed to do nothing but it changes the colors of objects with transparent pixels.
A different operator should be used.
Steps to reproduce:
- open Inkscape
- draw an object with RGBA color #00000080
- apply Fast Crop filter to that object
The original object (#00000080):
After applying the filter:
Object apears as if the color was set to #000000BF.
This of course also applies to imported bitmaps making this filter unusable for cropping bitmaps with transparency.
- Inkscape Version: Inkscape 1.2-dev (b270682, 2021-05-01) - Operating System: Win10 64-bit