* RGB was renamed to Linear, and is the scene linear working color space.
* Perceptual uses the color picking color space, which matches the visual color
picking widgets, and is sRGB in the default OCIO config. But it is not the
Display color space, because for wider gamut configs that would not cover
the whole gamut.
* The tooltips now show the specific color space name, which can be useful
information when using different OpenColorIO configs.
* HSV is now using the color picking space rather than linear, as this matches
the color picking widgets and is arguably easier to control.
Ref #144400, #143494
Pull Request: https://projects.blender.org/blender/blender/pulls/144564