I see that ADS-B traffic is displayed in front of more distant airport flags in the 3D EFIS view--as it should be. But on several occasions I've had trouble seeing the traffic icons when they were low, close to the horizon. They were lost among a lot of airport flags and user waypoints. Please see the photo below, in which both the traffic and I were flying low over a broad river, so its icon was right on the horizon.
As you see, the traffic was moving to my right, so its green side was toward me. It appears that the horizon line cuts right through it--on my side of it--making it harder to see. And it's lost in the clutter of airport flags. (The "PresHeads" flag is my own fault.)
Also, the green looks pastel to me. I'd expect it to be much brighter--fluorescent! The same goes for the traffic colors in the 2D map. Instead of that dull red, I'd prefer it to be the brightest red possible. The other traffic colors should be similarly bright and unobstructed by anything else.
This is not a complaint, by the way. I love this stuff!
There's a short video at https://youtu.be/Py1uUYVeRwM