This is very nice! It was so rare to find unique yet well executed puzzle games in jams and this is surely one of them. The puzzle mechanic is easy to learn but can really stretch into infinite depth if we wanted to. The whole theme fits nicely both into the jam and also the mechanic in the game, which is very good! The puzzles are not that easy too, they really require thinking and are not some straight forward exercise that some puzzle games tends to offer. I especially like the little polish of that light source image, which really give us some context of what the light represents.
So down to the nitpicks. It would be nice to have a reset button, it would be better to show some hint of what the pattern will become rather then just colour blobs, the game would benefit with a bit more tutorialisation, it will be good to have an isolated preview of each light beam, etc. But these are just minor nitpicks at the end of the day, the game is already extremely polished as it is.
I like the game so much and sincerely hoped that it can be made into a full game. I would probably buy it too if release on steam. I mean, heck, it's already better than a bunch of paid puzzle games on the market! Well done!