Automatically select correct colorspace

[sauraen]

Whenever a material is created or edited, or a scene is loaded, this PR sets the Blender colorspace settings so that preview of vertex colors is accurate (or more accurate than otherwise).

[Lilaa3]

Maybe an operator popup could work better than just automatically doing it on load? Some people have fast64 installed but have files that are not fast64 related, in which case they shouldn´t have their settings messed with without permission

[sauraen]

You mean like something pops up when you load the scene asking whether you want to change it or not? I'm not sure how to do that or if that's possible.

[Lilaa3]

See 50a6256
Only issue here is that i had to add a quick hack for update nodes to prevent mutiple popups, see if you like this

[sauraen]

Thank you for the implementation @Lilaa3 . I've accepted that but fixed a bug with the conditions checking, and have it only offer to fix if you're loading a scene which has fast64 materials in it (so not when first opening Blender, which was annoying).

[Lilaa3]

This is just about perfect I think, also that dialog description is way better than the one I suggested aha

[Dragorn421]

Nice
I have some small comments on the implementation

[Dragorn421]

I pushed a commit addressing my review. So this counts as a half-approval since I'm approving my changes 😎