if its not a false color highlight, it probably is for camouflage. in fact, right before radar dominated aerial detection, they considered putting bright white lights on the front of airplanes to reduce detection. its counterintuitive, but in the daytime, the sky behind a plane is brighter than most colors that can be made with paint.

they were called Yehudi Lights

I assume because it's cloud coloured.

Looks like a DJI, and that's the colour they are out the box.