ed by other tiles; it has no edges at all.</p>

<p>The way IconCutter works is by breaking these templates up into 4 corners
each, and developing all the possible autojoin states from those corners. For
example, state 1 would be an icon that joins to the north only; its bottom
half needs outside corners like you see in state 0, and its top half needs
to join north with edges on either side, like you see in state 17. So
IconCutter builds state 1 by taking the top half of 17 and the bottom of
0.</p>

<p>To ge