TORAIZ SP-16 : Show muted tracks in dim red when in Mute mode

When playing live and switching between Mute mode and Track mode (to play with the touch strip), it is easy to forget which mode you are in : pressing a pad to mute but ending up triggering a sound because you're in Track mode. The only visual indication are the buttons under the pads...

It would be good if the muted tracks were shown in dim red when in Mute mode for an instant very visual reminder that you are in Mute mode.