Location of Button-Icons

[thugo]

Hey there,

I have a freshly installed VLC-Player ... and I am trying to change the button-icons, i.e. the icons on Play-button, Stop-Button, etc. ... ... The reason is, that VLC does not use the system-wide icon-theme. And with a dark color-theme the icons are hard to see.

I did exactly this already in the past on another machine, so I know, it is possible, ... but I forgot how. :-/

So my question is: Where are those icons located, so I can modify them by hand?