The meeting's UI can be customised through the configOverwrite and interfaceConfigOverwrite objects which are part of the JitsiMeetExternalAPI's options object. For a list of all possible values, please refer to :

Note that not all options found in the two config files are overwritable.

Please see below a snippet on how to use the config and interface config overwrites in your application:

const domain = '';
const options = {
    configOverwrite: { startWithAudioMuted: true },
    interfaceConfigOverwrite: { DISABLE_DOMINANT_SPEAKER_INDICATOR: true },
const api = new JitsiMeetExternalAPI(domain, options);

There is a wide array of configurable things for the conference, some of which are described in the following subsections.