While the 3D visualization work had more progress, we need a 2D view that's more lightweight and works on virtually any device. So the milestone includes:

1-Being able to switch to/from 2D/3D at any point
2-Being able to set 2D or 3D as the default view for a given user
3-Making sure every component renders consistently in both 2D and 3D
4-Making sure performance (loading, navigating, memory usage) is kept as high priority, especially in the 2D view