public Map<String, Resource> getStaticResources() {
        return staticResources;
    }
Returns a map of all declared resources associated with this extension,
where these resources are not already associated as JavaScript, CSS, or
translation resources. The key of each entry in the map is the path to
that resource within the extension .jar. Static resources are declared
within the extension manifest.

@return
    All declared static resources associated with this extension.
guacamole/src/main/java/org/apache/guacamole/extension/Extension.java