Quote Originally Posted by utu View Post
I have no experience with the png you show for a Volume Control applet.

The one I use is the standard lxpanel applet supplied with Knoppix.
If missing, thie applet I use may be added with
Right Click lxpanel>Add/Remove Panel Items>Panel Applets>Volume Control>Add

You might try that.
That is the same one Im using on the image