You can try out different MacOS-like themes.
There were quite a few options/ flags for Mac theming in the documentation, and after looking at some screenshots, I find them quite similar and fitting.
Here are two popular ones: First and another one
Hey thanks. It still doesn't have that google material U ish aesthetic that I'm looking for but that's okay.
I also found another theme named - Bazik
Submit screenshots of all your *NIX desktops, themes, and nifty configurations, or submit anything else that will make themers happy. Maybe a server running on an Amiga, or a Thinkpad signed by Bjarne Stroustrup? Show the world how pretty your computer can be!