Purchase the Theme
If you haven't acquired the theme yet, purchase it here.
Download the Theme
Visit BuiltByBit to download the latest version of Cobalt Theme for NamelessMC.
Unzip the File
Unzip the file locally on your PC.
Upload the File
Upload the CONTENTS of the "upload" folder into your main NamlessMC installation directory (where the folders core, custom, modules, uploads, cache are)
Install in StaffCP
On your NamelessMC website, navigate to StaffCP -> Layout -> Templates and click the "Install" button. This will be found at the /panel/core/templates/ URL on your site (example: https://onyx.mcshowcase.net/panel/core/templates/)
Enable in StaffCP
Enable the "Cobalt" template by clicking the "Activate" button, and make it default by clicking the "Make Default" button