Hi if anyone need “Darker” theme, originally from RaspyFi, I have modified current Volumio “light” theme to make it more visually appealing (for me!) Se the attachments:
With Win7, there is many ways to copy files to RPi. Try winscp.net .
I am writing this from the mobile, so short answer only. If you still struggling, please reply and I will post full guide on “how to” when closer to my PC…