I think I read this in one of Brogan's posts, but I wanted to make sure it was confirmed so that I go about making my style changes correctly.
Is it true that if I customize a theme via the Style Properties in ACP, those changes won't be reflected in an upgrade? I should instead make all of my style changes via EXTRA.css? If this is the case, what would your advice be for someone who doesn't know CSS well? Is there another way I could back up the Style changes so that they are reflected in a future upgrade?