Create the Class GMapCircle
Your control is wonderful and I'm using it with great success. But it's missing a big thing: the native possibility to draw a circle. Actually we can draw a polygon using GMapPolygon but not a circle in the same way (specifying center and radius). There are some workarounds here and there like drawing a polygon with many many edges so that it seems a circle (that's very inefficient if you have to draw many circles...) Other way is to draw creating a custom marker. But there should be a native and easy way to draw a circle, that's a very used feature of markers on map, to display the current position using the accuracy, for example. Thank you in advance to evaluate the request.
Demo.WindowsForms.CustomMarkers.GMapMarkerCircle ??
Yes, I've seen it some time after writing this issue when I've cloned the github repo and used it with success. But when you install the NuGet package, like I did, you don't know that GMapMarkerCircle exists... So it would be nice to move it from the demo to the library, so that it would be a normal object you can use from your code when installing the NuGet package. That's my advice, ad least :) I've found some bugs when adding/removing markers that I enter a condition where the OnRender go in error with invalid coordinates or something similar. If I'll have some spare time I'll try to make a standalone test to catch the operation that generate that problem and in case I'll open a specific issue or if possible I'll fix the problem. In the meanwhile thank you for this beautiful control :)