You're welcome to use any mazes you create (or generate or whatever) however you wish.
To show the solution for the current maze, press the S key. (It looks a bit janky though unfortunately, so a possible workflow is to show the solution, draw over it, toggle dark mode on and off to clear the solution, then while showing the drawn solution hit 'P' to save an image. Unfortunately there just isn't an easy way for me to make it show a nice solution, I have bean thinking it would be handy)
Thanks for the feedback! You get pretty much all the features on the web version anyway, so it's priced like that so that you only need to buy it if you're really going to get your moneys worth by doing the big mazes over multiple sessions, or making lots of custom mazes
