How can I change the android wear 1.5 menu background from white to black?

[IvanPL_HR]

Hello,
I want to change my app menu background (left-swipe menu) from white to black to save some battery. I rooted my watch already and I saw in previous thread that the solution to this is to change some script files of android wear system with rooted watch but there was no explanation on how to do this.

Thanks for your help!