Indicate if audio and subtitle tracks are disabled

[Keith94]

At a glance, there's no way to tell that the available audio/sub track(s) are toggled off until you see the Subtitle -/1 [n/a] tooltip.

Should the icons be grayed out or have a different icon to help differentiate that?

[Samillion]

Terribly sorry about the late response. I've been out of home most of the time lately, so schedules are a bit erratic.

What color by default you think would be suitable for this? or should they just be grayed out?

[Keith94]

Lately I was thinking of adding a border on the bottom (like YouTube's) to clearly see when subtitles are enabled.

Available and turned on:

Available but turned off:

None available:

Do you think that's doable? Although I would only apply it to subtitles, audio can remain untouched.

[Keith94]

With that said, it's probably a lot less work to implement a simple grayed-out appearance.
That's what old forks of the project used to do, too:

brave_CcXSN2mwYn.mp4