The Theme Settings menu offers options that you can change to customize the visual apperance of Rockbox.
A theme is a configuration file, stored in a specific directory, that typically changes the WPS , font used and on some platforms additional information such as background image and text colours.
There are a number of themes that ship with Rockbox. If none of these suit your needs, many more can be downloaded from WpsIpod5g. Some of the downloads from this website will actually be standalone WPS files, others will be full-blown themes.
Note: Themes do not have to be purely visual. It is quite possible to create a theme that switches between audio configurations for use in the car, with headphones and when connected to an external amplifier. See section 11.2.2 for more details.