The Mobile Application Builder for Zimbra Community 8 supports defining global stylesheets that will be included with the framework of the application. These stylesheets can define new global styles or override existing style rules.
Each additional stylesheet is defined using a <styleSheet /> node in a configuration file installed with the server components of the Mobile Application Builder.
Content of the stylesheet
Represents a stylesheet to include with other global stylesheets. The content of the node is the stylesheet to include, likely CDATA escaped.
Note that supplementary files, such as images, can be referenced by URL within the text of the stylesheet using the escape format embeddedfile:FILENAME where FILENAME is the name of the supplementary file.
Stylesheets also support using server-rendered LESS syntax.