jitsi_app_c0/react/features/video-layout/constants.js

/**
 * An enumeration of the different display layouts supported by the application.
 *
 * @type {Object}
 */
export const LAYOUTS = {
    HORIZONTAL_FILMSTRIP_VIEW: 'horizontal-filmstrip-view',
    TILE_VIEW: 'tile-view',
    VERTICAL_FILMSTRIP_VIEW: 'vertical-filmstrip-view'
};