Well I'm just testing an isomteric type graphic thing, and when theres only a 1 space tile between the solid tiles theres not quite enough room
<img src="http://img2.uploadhouse.com/fileuploads/2048/2048812611e03adbab08a86dc4d4083431572ec.png">
blue being solid, I was just wondering if the cell size could go slightly smaller it would be able to fit.