Working with Themes
Themes are used to change the appearance of your Confluence site or spaces.
Confluence comes with a single default theme installed, or you can download and install other themes from The Atlassian Marketplace.
Once a theme is installed it can be applied to the whole site or to individual spaces.
To see the themes installed in your site:
Go to Administration
> General Configuration > Themes.- You'll see a list of all the themes installed in your site.
When a new space is created, whichever theme is applied to the whole site will be applied by default to the new space. The space theme can then be changed by anyone with space administrator permissions for that space.
Note about the Documentation theme
The Documentation theme was available in Confluence 5.9 and earlier. Many of the Documentation theme features are now available in the Confluence default theme. Check out Develop Technical Documentation in Confluence for more information about using Confluence for documentation using the default theme.