[IDEA] Customizing Volume Control Buttons

[Nutul]

but now i have to delete the volume slider and the numeric indicator since i get this information from somewhere else.

Aren't they showing 0dB? They do not change...
Anyway, you can always search for the CSS classname of (one of) the DIV into which they are contained, and add

visibility: none;

to it; this preserves the room they take up (hence do not risk disrupting the UI...), but will be invisible.

HTH