Yatta-Blues is a refined and lucid Gnome icon theme.
Before you dive in, it's worth noting that you'll need to be running Gnome in order to use this theme. Assuming you meet that requirement, installation is a breeze. Simply navigate to your Desktop's preferences menu and click on the Theme section.
From there, you'll see an option to Install Theme. Click that button and select the icon archive for Yatta-Blues. Once that's done, you can dive into the details of the theme by going to Theme Details and selecting the Icons tab.
You'll see a list of available icon themes, including Yatta-Blues. Just select that option from the list and your desktop will be instantly transformed with these stylish icons. Overall, Yatta-Blues is a great option for anyone looking to spruce up their Gnome desktop with a touch of elegance.