It is the nature of the beast that before you have anything much to show for the effort you have to build a lot of systems.
Most of today’s productive time was spent building, testing and debuging the map/tile system.
The rest of the early morning drawing time was spent adding a few more sprites to the sheet.
You can Try out the little debug tool I made here but all you can do is left and right click. Sorry folks windows builds only for now.