The system will then automatically set an accent color based on the colors of the current wallpaper. To enjoy your dark theme beyond your desktop, you can also choose accent colors to match your theme. Others can just be installed by double-clicking the theme pack file-they will also feature in the Themes section.
Here's how you can install and personalize them: The themes showcased here do not need an external app to use them. How to Install and Personalize a Desktop Theme