↑ Screenshot taken while the video is muted

What you want IINA to do:

When audio is muted, have the Audio menu's volume indicator show that. Changing it to Volume: 100 (Muted) would be good.

Even better, the Mute menu item should change to Unmute if the audio is already muted.

What IINA does currently:

When the media is muted, the menu shows the volume level (0-100), but no indication that it's muted.

Why you think this should be added:

It's very misleading if there's no audio playing but the Audio menu just shows 100 volume.