Comment 7 for bug 568819

Otto Greenslade (Karma: 55) wrote:
" using a tint to subtly show the unfilled volume bars rather than removing them completely as we do now."

That was how the icon was for Karmic, but it was requested to be changed to the current one with no waves, as per the sound menu guidelines:
https://wiki.ubuntu.com/SoundMenu#Artwork%20requirements

Subscribing mpt.

btw , the icon in the screeshot is from Humanity , this is a problem in ubuntu-mono as well though.