Radiant style needs to be installed as a package instead of importing it directly as a style. Follow carefully the instructions below in order to properly install this style.

1. Login to your WoltLab ACP.
2. Go to Configuration → Packages
3. Click on +INSTALL PACKAGE → UPLOAD PACKAGE
4. Browse for the com.forostyle.style.Radiant.tar.gz file and click the SUBMIT button.
5. Go to Customization → Styles and set Radiant as default.
6. Go to Configuration → Radiant and set the values of your desired configuration options. Give more attention on the Footer tab since most of the values in this option needs to be changed.