Roadhog lights

Hi,

I somehow seem to have dimmed the two blue lights on the front of the hog, but I have no idea where I did that. They are allmost off now. Where can I control these lights?
When the desk starts up, the trackball turns blue for a second, but putting it in ball mode doesn't turn the blue light on like in a hog3. Is this normal? It's the 2nd roadhog I'm using, both did the same.

Regards,

Bhagat
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