[Bug 37106] Sound muted icon unclear

[Ariel Vardi]

Public bug reported:
https://launchpad.net/malone/bugs/37106

Affects: control-center capplets-data (Ubuntu)
       Severity: Normal
       Priority: (none set)
         Status: Unconfirmed

Description:
The sound muted icon displayed when pressing the mute fn key is unclear.
It should display an obvious indication that the sound is muted. Right
now, it's just displaying a speaker without anything coming out of it.