Themes Collection (Ubuntu/Linux Mint)

NoobsLab offers huge theme collection for GTK, Gnome Shell, Cinnamon, Mate. You can easily install themes via PPA in Ubuntu/Linux Mint/Debian/Other Ubuntu based Distribution.

Icons Collection (Ubuntu/Linux Mint) - KDE Store

Choose the right edition — Linux Mint Installation Guide documentation

Linux Mint Themes and Icons beyond the default

Themes Collection (Ubuntu/Linux Mint)

Linux Mint 21.2 XFCE Review - A True Windows Alternative

Ubuntu with Linux Mint Icons

Ambiance & Radiance Colors Themes Updated With Xfce Fixes ~ Web Upd8: Ubuntu / Linux blog

How to Customize Linux Mint 21 Cinnamon Edition with Nord Color Theme, by LINUXSCOOP

Themes - Learn Ubuntu MATE

10 Best Dark Themes for Ubuntu Linux