[renamed] About skin.ini in v7.x (former Beta)

Dear Mairlist user,
How can i change the color of the voice track waveform in the mixeditor.
I know there is a beautifull skin.ini button and, i used it already to change the “looks” to make it a look a like omiplayer.
It went the right way. But now i would like to change the voicetrack wave form color.
Code something like this in the skin.ini:
[Mixeditor]
Voicetrack???
I hoop somebody can help me on the way.
Thanks in Advance