Make "Mute Tab" and "Unmute Tab" distinguable

[c_hartmann]

the current ones look nearly identical and are hard to distinguish. please consider something different here. e.g. a full speaker (on) versus an outline speaker (off) icon. 

[Jon]

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[Agentvirtuel]

Hello

Of course, this is not the expected answer

Nevertheless, https://www.userchrome.org
If you want to try, userChrome.css
https://connect.mozilla.org/t5/ideas/quot-goto-first-sound-playing-tab-quot-context-menu-of-a-tab-an...
And by way of illustration
https://commons.wikimedia.org/wiki/File:Icons8_flat_speaker.svg
https://commons.wikimedia.org/wiki/File:Gartoon_actions_player_mute.svg