UPDATE: Because of a request over at deviantART I put together a small update for macOS Mojave. Available here: NO LONGER AVAILABLE. Looks similar to that of High Sierra except for the Finder Toolbar buttons. --- It's an Aqua-like (lick) theme for macOS High Sierra. With elements of some 'not Aqua-like' elements. Version 1.0.5 is out and available at the same link as before. I've attached a newer screenshot. Non Hi-dpi users can now use the theme too as I've made the graphics for that too. Screenshot below and download 1.0.5 at: NO LONGER AVAILABLE.