Now uses the "standard" Game Boy colors. Since the "light gray" color is pretty close to the "white" color, I had to change the coloring of some sprites. That was harder that writing the Phaser code to render the map.
This was a screenshot I created. It follows the appearance of the town map of the 1997 Pokémon series, though I make sure not to copy how they did forests or rivers. (Moot point, there were no "forests" on the map, and the water was much more simple than I remembered.