For those of you who own Pyxel Edit I've made a template for four sizes of autotiles. These templates aren't going to be useful in anything else, but in Pyxel Edit they're set up so that you can see different test configurations as you draw and make sure everything matches up the way you expect it to, then you can copy and paste it into your tileset file. Since Pyxel Edit is a pixel program it's not going to be as useful in creating non-pixel styles. Sorry. Autotemp16 and autowall16 are for making 16x16 tiles that will later be doubled or tripled in size, like POP! Horror, Time Fantasy, and Old School Modern tiles. These tiles could be used in VX, Ace, and MV. You'll have to resize them on your own. Autotemp24 and autowall24 are for making 24x24 tiles that will later be doubled in size for use in MV. You'll have to resize them on your own. Autotemp32 and autowall32 are for 32x32 tiles like in VX and VX Ace. Autotemp48 and autowall48 are for the 48x48 tiles in MV.