Another benefit of using GEGL is being able to work on images in a linear RGB color space as opposed to gamma-corrected (perceptual) RGB color space.
Here is what it boils down to:
You now have both linear and perceptual versions of most blending modes.
There is now a linear version of the _Color Invert_ command.
You can freely switch between the two at any time via
→ submenu.You can choose which mode is displayed in the Histogram docker.
You can apply Levels and Curves filters in either perceptual or linear mode.
When higher than 8-bit per channel precision is used, all channels data is linear.
You can choose whether the gradient tool should work in perceptual RGB, linear RGB, or CIE LAB color space.
Contributors: Michael Natterer, Øyvind Kolås, Ell…