The Boron - XenForo 2 Style is a Free XenForo Style that simple, clean and modern
1. Upload the contents of the upload directory to the root of your XenForo installation.
2. Go into your XenForo Admin Control Panel, click on Appearance menu, select Styles menu, and then click on "Import" in the left-hand navigation list.
3. Click on the upload file field, and then navigate to and select the style-Boron.xml file.