this is my c# implementation for this project idea. Essentially turning a grid of integers into a grayscale map and being able to draw paths on top. The bulk of the code has been adapted for both a console app and a .net maui blazor app, though the latter can not be distributed and a person has to run it themselves.
8mb.video-lkW-kQkPmhYX.mp4
A ready made file is here - 480 x 844. I havent managed to find anywhere else where other files could be made/found to use with the app, so if anyone knows, let me know!