It seems nobody knows about this, ... disappointed. I have been trying several ways with no success. I edited aero.mstyles with grey background, and with default aero it worked but as soon as I applied a skin from Wblinds, the background turned white again. Also tried editing the "*.uis~_ControlPanel.colours" inside the skin in Wblinds because I saw some values with 255,255,255 and inside "* (Windows 7).xps" I have found references to [ShellStyle.ControlPanel], with white color too, but nothing changed.
This is becoming an obsession for me, could anybody at least point me towards a more appropriate forum, or maybe the creators of the software could lend a hand and enlighten me, that would be cool, please, i doesn't take so long, and everybody can benefit !!
Thanks guys ..