Сustomization QTvcp

this is great stuff, though I don't see any difference for state_led from the master branch version.

Yeah, nevermind. I didn't mean to include that one.

I pushed this to master.
I changed a couple property names ( base_color and base_gradient_color) and added properties for the gauge center color (center_color, center_gradient_color)

Also added the details to the widget docs.

Qtdragon-hd now uses your new gauge styling to showcase the changes.
Thank you for this work!

Chris