Bubbles can be rendered in different colors and sizes based on the data values of their assigned shape. You can add information to shapes such as population density, number of users, and more. You can enable bubbles using the MapShapeSource.bubbleSizeMapper. This property is used to specify the value based on which the bubble’s size has to be ren..
Why do you think that https://github.com/SyncfusionExamples/flutter-maps-marker-animation is a good alternative to flutter-choropleth-maps