If the page provides enough padding, the banner contains the name of space. If the padding is too thin, only a thin line is rendered.

In case the space defines no Subject property, the space name is rendered as default.

The script requires the following apps to be installed on Confluence.

There is a CSS style sheet to be used as a template to configure the banner.

The userscript renders a class with the lower-cased subject name (invalid chars are replaced with an underscore, spaces by a dash) with a "projectdoc-" prefix.

Modify the CSS rules according to your needs. Add these rules either to the global space stylesheet or to the stylesheet of a single space.

Typically the banner is not required for every space of a Confluence site. To activate the script for specific spaces, the 

Configure the space category via the Space Tools.

Once the categories contain a category 'banner', as specified in the