For example: https://is3-ssl.mzstatic.com/image/thumb/Purple113/v4/ca/86/58/ca865880-bf47-0dc6-a6c2-c3a55ccd2d97/mzl.sxtwljsf.png/313x0w.png

Does this come from X-Plane apt.dat files or real-world data?

X-Plane's apt.dat so it may not always be accurate or complete.

If its a third party airport its apt.dat gets sent to the app.

You can also drag your own updated apt.dat file to the app with File Sharing.

Roger, thanks!