Making it easier to set colors sounds fine to me. It probably won't make it attractive to many more people (personally I didn't find inverting the colors hard.

Making it easier to set colors sounds fine to me. It probably won't make it attractive to many more people (personally I didn't find inverting the colors hard...) but at least it doesn't gut what makes emacs useful and interesting in the first place. ... which isn't something you can say about every improvement people suggest. :)