I'm working on resizing 16x16 gba tile maps to try and use with one world. I've been able to crunch the numbers to resize images to fit the Kracken and default custom tables but whenever I try with one world I can't get the grids to align. My running theory is that the squares of the One World grid are not 100x100 at grid size 2 and something slightly off. I'm also wondering if the map edges bleed under the table too.

My formula is "(100-16)*X/16+X" to resize the image to 100 pixel squares, letting Y be kept proportional, then resizing the canvas to 4800x2835. The canvas resize is down only on the top and right edges so that a tile is never "split" between top and bottom.

Does anyone have any insight into this?