setStyle doesn't work for media component?

I’ve tried both of the below options to modify the media playback component at runtime. The play/pause button accepts the themeColor value but the rest of it still appears as the standard haloGreen look.

Can anyone help?


_global.style.setStyle("themeColor", "haloBlue");
// and
videoPlayer.setStyle("themeColor", "haloBlue");