DigiConnect ME GPIO pins

The hardware guide says that the Digi Connect ME and WI-ME can source 2mA each on the gpio pins. However, I can not find any reference to how many mA the pins can sink.

I’m trying to use two GPIO pins to drive a bicolor LED in common anode mode and would like to avoid using transistors if at all possible. Using a common anode means that a logical high would result in the off state, and a logical low would result on the on state for each LED.