AFAIK, dual colour LEDs require three leads, and there are only two LED pads, so it looks like only single colour support. It *looks* like there are traces running to the LED pads, but I haven't seen a good enough shot of the PCB yet to be able to tell how the traces are laid out.
If you have a multimeter, you can probably test each pad and see if there's any potential reaching the pad. You'd want to test for a potential difference between the ground pin of the IC and the anode (+). Of course, if they've done something really weird with the wiring of the board, this might break something, and I wouldn't be able to say for sure without looking at the board myself.
This will only work if the firmware is actually set to light LEDs if present, and only if the SMD resistors are installed.