As I understand there is no public demo, but maybe adding some image examples to readme would be nice?

Especially demonstration of multimodal capability.

It it would be considered as an improvement I can try adding something like this.

TilePix only supports orthogonal maps (currently - hopefully we'll be able to support other types in the future). A sensible error should be returned on Reading a map which doesn't have orientation="orthogonal".

Need to set up a constant for each type:

• orthogonal
• hexagonal
• isometric
• staggered

Then, using a switch statement, check against each, returning an error if not