gauge or button lighting

I am creating a custom gauge for a plane, and I'm using XML. Can backlighting be coded and if so, how is it done?

I would like it to look about like these GAU format gauges. Well lit with no cabin lights on. Can I do this with XML?

EDIT: NVM, I figured it out hehe. Bright="Yes" does wonders, I must have overlooked that somewhere.
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