title: What's the difference between the components ReactMapGL and MapGL in the react-map-gl library?
body: <p>I can't understand the difference between the component ReactMapGL and the component MapGL in the react-map-gl library. The docs don't explain it and they seem to have the same properties.</p>
  
  <p><a href="https://uber.github.io/react-map-gl/#/Documentation/getting-started/adding-custom-data" rel="nofollow noreferrer">https://uber.github.io/react-map-gl/#/Documentation/getting-started/adding-custom-data</a> even the examples use them intermittently</p>