v0.2
bl 2.79
osx 10.11.6
Tried this addon again today after seeing a video on BlenderNation. I noticed that when the UV tiles arent 1:1 ratio than the preselection looks weird. In my case it was uv unwrapped 1:1 but than assigned to a none 1:1 image.
In the image below you see the highlight at the wrong location and ratio.
