since we have a bit of space between the base plate and the acrylic plate, and the acrylic is a tiny bit translucent, we thought about putting a cross of different colored LEDs underneath so that you have reference lines for noon, midnight, 6am and 6pm.

Since we have an AVR in there anyway to run the stepper motor, it wouldn't be much of a problem to even run them in PWM to find the perfect brightness level.

Might do that soon-ish ;o)