// The docs say we need to set options.touchScreenOptimizeApp = true
// https://developers.google.com/cast/docs/caf_receiver/customize_ui#accessing_ui_controls
// This doesn't work.
options.touchScreenOptimizedApp = true;

// The class reference say we can set a uiConfig in options to set it
// https://developers.google.com/cast/docs/reference/caf_receiver/cast.framework.CastReceiverOptions#uiConfig
// This doesn't work either.
options.uiConfig = new cast.framework.ui.UiConfig();
options.uiConfig.touchScreenOptimizedApp = true;