Glider sites may not have an ATZ, but they are places you're well advised to steer clear of. The glider symbol in SkyDemon is easy to miss - in the image Tim posted, the site at Halesland is hard to see, as is the one at Eyres Field. The only one of the five that really stands out to me is the one at Merryfield. I feel that making the symbol slightly bigger and in black would help a lot.

Thank-you!

Or at least make it an option.

They're the same symbols at each airfield. At present we are happy with the way they are depicted. That doesn't mean we won't change them in the future, but we will keep an eye on it.