In the newly added Tilemap system, the TileBase and Tile have no tag attribute and it is then not possible to identify them by anything else than their name attribute which is not very practical. It is however said in the documentation of TileBase :
Inherit from this to implement your custom tile to be placed in a Tilemap component.
I guess it can be used to create our own tile system but then I can't find a way to use this new class in the tilemap instead of the basic Tile class. How can I use this inheritance to create my own Tiles ?