This patch unifies the Gamma node across editors: - Compositor now uses the Shader Gamma node implementation. - Geometry Nodes also uses the node as a new addition. - UI-wise in the Compositor, only socket labels change to "Color". Forward compatibility is broken for the compositor, and the python API changed, since the node's ID name is now ShaderNodeGamma as opposed to CompositorNodeGamma. Pull Request: https://projects.blender.org/blender/blender/pulls/142414