The tiles don't have to align on the 16x16px grid.
fhwise13 has some tiles that are offset + 8px down

Make sure offset tiles are correctly rendered.

• Grid squares should go around the tiles in use maybe. Right now the grid is drawn on a 16x16 grid. if tiles are offset the grid isn't shown in the correct place.
• Pupu ID needs imported from SFML version.
• Mouse over tile needs to work with the offset tiles.
• SFML version, The slider for adjusting position no longer needs to step in 16px intervals.
• SFML version was updated to separate offset tiles into their own files. This was done to prevent overlapping when deswizzling. #122