First update, a few small-ish things:

• Fixed issue with some bad aspect ratios
• Added an animation on win.
• Added a UI digit that says how many tiles are in an island on mouse over. (thanks Jack Brennan)
• Added a couple more UI sounds (pick up tile and UI button click)

We've also changed the tile random distribution, added some tiles and got rid of some. We've categorised tiles on how many sides of the square have coloured edges and then whether they contain any half edges.

• All tiles now only have coloured edges on 3 sides or less.
• We got rid of the fully enclosed tile with no colour on it's edges
• We've made tiles with 1 coloured side more likely than those with 2,  those with 2 more likely than those with 3.
• Blue and Red get the same deck of tiles but shuffled in a different order

This is something I think we will continue to experiment with but felt like it needed addressing ins some form now - the current config is not fully tested but hopefully less tiles will need to be discarded.