Here is one of the many themes I made years ago. Works good with eCS. This is the red folder theme. I also have it in black and yellow. I also have smoke and purple glass folders themes and others. All folders are based on Linux folders. I have attached one if anyone wants to try. I had problems running these themes on ArcaOS. Done in wpi so they can be removed. Before installing, it is a good idea to back up the desktop.
Start the wpi and see a screen shot. Can always cancel the install afterwards.