Hot Spot Property Editor

Can anyone recommend a hot spot property editor? I need to be able to upload an image and identify multiple “hot spots” X/Y coordinates by % to be able to manage hot spots on a responsive image an example of the kind of end effect I’m going for is something like this.


This is a companion discussion topic for the original entry at https://our.umbraco.com/forum/93414-hot-spot-property-editor