Not the only way. XtraFinder does all of that, also reinstates colours for the SideBar icons and is free.
Yeah, it seems strange that Apple brought back color for iTunes and has wacky color schemes for iOS now, but they didn't bother to put back color for the Finder? I think it just shows how little attention they are truly giving OSX upgrades. They seem to focus on nothing but iOS anymore. I might understand this if Apple wasn't richer than god and could afford to higher more programmers. I mean come on, most college kids are having a hard time finding a job these days. Apple could help us and them both (and in turn the economy; the more who have decent wages, the more who can afford to spend on luxury crap).