Different acesories use different technics to illuminate the dash and radio.
The cluster is colored by the overlays, most bulbs are clear/white.
The radio uses LEDs in each of the EQ buttons, all the rest is red plastic with a clear light, cant be changed to much but maybe purple with a Blue bulb
The HVAC gets the color from the overlay too, the knobs are red plastic w/clear.
All the lock/window buttons are colord from the bulbs red silicone cover, pull off the cap and its white
Hope that helps.
I hav a back burner Mod to replace the lock/window button lights with LEDs.
This will require the cutting of wires and soldering in a resistor.