'Image url of current playing media.'

@property
def media_image_url(self):

    if (self._current_source_id in self._app_list):
        icon = self._app_list[self._current_source_id]['largeIcon']
        if (not icon.startswith('http')):
            icon = self._app_list[self._current_source_id]['icon']
        return icon
    return None
