media-playback-start-symbolic 1 0.01 0.05 vertical Player True go-previous-symbolic true 12 12 18 12 800 vertical 12 12 center 6 False True media-skip-backward-symbolic True media-playback-pause-symbolic False True media-skip-forward-symbolic vertical True start Title end start Subtitle end True center media-playback-stop-symbolic 6 0:00 position True 0:00