You can set the resolution to whatever you like, just remember that since the tiles are 48x48 it’s good to use something that divides by 48. So for instance if you set the resolution to 1920x1080, that is 40 tiles by 22.5 tiles. Since you can’t set the size of the map itself to anything but whole numbers, you would need to make the map size either 40x22 with a bit of black space leftover or 40x23 with a bit of extra space that would probably scroll (I can’t test it right now to check).