Thank you so much!
Official Blender 2.8 Release
Sorry for the long long long delay, but finally the official release of Sprytile for Blender 2.8 is out!
Ologon has written a guide on the changes to the Blender 2.8 workflow on the forum.
A major change to the workflow is the use of the Sprytile tools tab in the Tools Sidebar. Open the sidebar by pressing the arrow button on the right of the viewport, or pressing the T key.
Another optional workflow change is setting up the pixel viewport. By default, Blender 2.8 will make your textures look darker without this step, but you might want to skip this if you will be using the color correction functionality of Blender.
Sprytile tools are now part of Blender 2.8's toolbar. To use the 'Get Normal' mode, you just need to press 'N' on the keyboard while in Build mode.
I'm very grateful to the community for porting Sprytile to Blender 2.8 and continuing to showcase the work they make with Sprytile.