Navigate to StaffCP

Navigate to StaffCP -> Layout -> Templates (this will be found at the /panel/core/templates/ URL on your site. For example: https://onyx.mcshowxase.net/panel/core/templates/)

Enter the Settings Panel

Click the "settings" button next to Onyx. The settings panel will open! Please click through all the panels to see what settings are available! You can change the logo, primary color, background image, and much more.