For only Windows 10 versions 1809 and lower!!!

You may change the icons using the ipack. Change the extension from ".ee" to ".exe" and install. Create a restore point when prompted!!! To revert to original icons, either rerun the installer or uninstall from settings or the control panel as you would any regular program.

To change Quick Access:
niivu.deviantart.com/art/Quick-Access-Icon-Changer-704327034

Enjoy!