To install this icon pack you need to use 7TSP GUI 2019 Edition found here:

https://7tspgui.com/7tsp-gui/

Installation:
Run 7TSP GUI & click Add a Custom Pack & select the icon pack you want to install.
Click on Start Patching.
By default 7TSP will create a restore point & install the icon pack.
Once installation is done reboot & you're done.

Uninstall:
Run 7TSP GUI, click restore and click Ok on the Restore Menu. 
Once uninstalled, reboot. 

Note:
Do not use any of these icon packs on any other WIndows 10 builds other than 1903 19H1, 19H2 & 20H1.

CREDITS TO devillnside and Moonnique for the installer.
niivu for the instructions.
