Autotiler is still in active development. I've just make few additions and changes to make AutoTiler more comfortable to use.

Changelog:
0.0.0.2
-added: ability to save and open previously saved project (currently olny one project can be saved)
-added: images are now resizing correctly
-added: fullscreen/windowed and close buttons in upper right corner
-added: quick messages showing at the bottom 
-changed: resolution increased to 1080p
-changed: max tile size increased to 128 pixels
-fixed: image and settings menu showing over help screen.
-fixed: zooming is now aligned in center of the screen

If you have any feedback, fell free to post it!