This ignores the scene color managment view settings for solid mode and lookdev when not using scene lights and world. The scene settings are intended for tweaking renders and should not affect studio lighting and matcaps. There may be cases where a simple sRGB transform is better than Filmic and we could add configuration for this. Not sure if it really matters and it may be better if we just assume matcaps and studiolights are all created for one view transform. Differential Revision: https://developer.blender.org/D3569