Press the green flag. The variables are hidden by default. Hover your mouse near the bottom left corner to reveal them, and pull it away to hide it again. Turn the 'Run:' variable to one. Set the 'Random Start:' variable to 1 before starting to start with a random arrangement of black and white squares. A value of 2 or higher will cause a random arrangement of black squares with higher concentrations towards the center. Change the speed it runs at with the 'Speed:' variable. It should eventually, form a highway. ##NOTICE## For some reason, when you toggle full screen mode, it will sometimes break and stop changing, despite the project still running. I can't figure out why or how to fix it, so be cautious toggling fullscreen mode while it is running. If you find any bugs, please tell me in the comments so I can try to fix them.
Thanks to @misteralphonso for making the original project. I just fixed it up (because it didn't work well on less powerful devices like Chromebooks) and added a few new features. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Versions: 1.0: Posted current 1.1: Added auto-hide feature for variables