The new controls are:
- Map Tile Server - Lets you pick from several different tile servers to seed the map with (a mix of maps from MapBox, OpenStreetMap and MapQuest).
- Transition Duration - Lets you pick from a few different durations dictating how long it takes to show markers and draw links.
- Clip Map - Lets you turn on the clipping path that makes it appear as if you’re just looking at the lower 48 states.
- Link Color - Lets you change the color of the links.
The first two can only be changed after the animation has completed and there’s a “Redraw” button to restart the animation. The latter two can be changed even while the animation is in progress which is kinda cool. I could of, of course, added more controls like marker color or arrow color (just orange) but that’s not the point here.