Wow, I was not expecting to download a pdf this jam! Physical games usually aren't played as much since they aren't accessible to most people rating them, but you managed to solve that problem!
The only thing I was unsure about is how the colored dice worked. I like the idea of keeping the rules hidden so players can use some creativity to make their own versions of the game - but that doesn't really work if there are "intended" rules. You could still make it work if you had the first one or two examples of the color rules explained to the player first, that way they have an idea of the type of rules that were meant to be filled in (for example sticking only to rules that change the direction of lines), then it becomes possible for the player to find the "correct" rules with some carefully created puzzles. But without those examples, there are simply too many possibilities.
Putting technical issues aside, I appreciate your boldness for making a physical game, and I think you pulled it off quite well! The visuals are nice and clear, and its still playable on your computer without any props!