You can clone repository from git and pull it. And you can download workshop files from steam.
1. Upload the files (only app, public folder) to /var/www/pterodactyl and overwrite the folders.
2. Follow the instructions in:
- You may not addon the theme
- You may not send this addon to others
- You may not upload this addon to any third party sites
- You may not install this addon on multiple servers without consent
- Support is not guaranteed
- Maintaining the addon is not guaranteed
- You may not request a refund
- You may not chargeback
If you have any problem, do not hesitate to contact me!