Co-authored-by: Ivar Conradi Østhus <ivarconr@gmail.com>
Co-authored-by: Christopher Kolstad <chriswk@getunleash.ai>
Co-authored-by: Christopher Kolstad <git@chriswk.no>
This feature enables overrides of certain UI elements from the API
such as setting a different background color for the header.
This will make it easier to customise the UI in different environemnt.