config/units library
Enums
- MarkerColor
- Marker colors enum
Properties
- 
  colors
  ↔ Map<MarkerColor, BitmapDescriptor> 
- 
  Colors map that returns the color of the marker
  getter/setter pair
Functions
- 
  customMarker(LatLng? latLng, void onDragEnd(LatLng)?, {MarkerColor markerColor = MarkerColor.red}) → Marker 
- Custom Marker
- 
  customPosition(LatLng latLng) → Position 
- Customizing the Position and get it