Themes are stored in the
themes directory. The default location of that is:
- all platform:
<directory of the program>/config/themes/
If this directory does not exists, you can create it manually. Then simply extract a theme's folder to this directory and choose the theme in the Settings menu of Pegasus.
If you wish to place the themes somewhere else, please see this page for the list of directories Pegasus can access.
You can find themes HERE.