While reading the PSD specification, I saw that GIMP already has code to support importing several types of Adjustment Layers. I did a quick test with connecting the Threshold, Posterize, and Invert code to our PSD plug-in, and it seemed to work well! Hue/Saturation, Levels, and Curves should also be easy enough to add support for, since we already support PSD presets for those filters.

RE:

Fosstodon

ZeMarmot :gimp: (@zemarmot@fosstodon.org)

With @GIMP@floss.social 3.2 on the final stretch, today I spent quite some time preparing #GIMP 3.4 and 3.6 initial roadmaps 🗓️ with input of ...

Full CMYK mode and vector masks are my contributions to the plan! :) A lot of cool stuff will be showing up in 3.4 and beyond. View quoted note →

The concept of a "maskable adjustment layer" came up in conversation - where you can selectively mask an NDE filter on the layers below. I realized that after @ZeMarmot :gimp: 's work on making passthrough layer groups cover the full group render, we basically have this already. With a minor code tweak I'll be submitted soon, you can recreate maskable adjustment layers right in GIMP!