Installation instructions:
1: Open a terminal and change your directory to your getEso skins folder. (cd /var/www/eso/skins/)
2: Clone the repository (git clone https://github.com/b-rd/esoFlat.git)
You can clone a specific release by typing (git clone https://github.com/b-rd/esoFlat.git --branch v0.0.0) replacing v0.0.0 with the intended version
3: Open your browser and go to your esoForum's dashboard. Click skins, then click "Flat" by berd
Alternatively, you can edit the skin.php file in your getEso config folder. The skin name is esoFlat.