How I made my Zorin OS 15.3 look this way

So, how did I get my Zorin OS 15.3 to look like this?

Before you start looking at themes, you first need to get Tweaks installed.

sudo apt install gnome-tweaks

My set up is based on a Theme for applications called MacOS-Catalina-1.0

The icons are called Cupertino-Catalina

and the Shell is McOS11-shell

When all downloaded, your Tweaks should look like this when set up correctly.

Hope this helps.