Silicon - XenForo 2 Style is the 8th free XenForo 2 style designed by Brivium, that lightweight and dark color.
LIVE DEMO: http://brivium.com/demo/silicon/
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-Silicon.xml file.