Themes are skins for your site that allow you to change the look, feel, and general appearance.
Backdrop may not look like much when you first set it up, but that's because it's intended to be themed. You can add a custom or third-party theme to change the way your site looks.
- Extract the files. When you first get the theme, it will appear in a compressed file format such as 'tar.gz'. On Windows, use a program like 7-Zip to extract it. On the Mac, you can use the built-in extractor. To extract the file using the Unix command line:
tar -zxvf filename.tar.gz
You should see a list of files extracted into a folder.
- Upload the folder. FTP/Copy/SCP/Git pull this extracted folder into the
themesdirectory in your site root.
- Read the directions. If the theme includes a documentation file (usually README.md) read it for specific instructions. (There are many themes that require special configuration to function properly.
- Enable the theme. Go to Administer > Site building > Themes. Check the 'Enabled' box next to the theme.
- Make it the active, default theme. Check the 'default' box to make this the chosen theme for your site. (It's possible to have more than one enabled theme, because you could use contrib module, for example, to change themes based on a taxonomy term, or personal preference.)
- Save Click the 'Save Configuration' button at the bottom.
If you run into problems, check the theme's issue queue. If your problem hasn't already been addressed, post a question and someone will try to help you out.