Use WASD to move the particle source thingy, the left and right arrow keys to change the colors, and the up and down arrow keys to change the time of day. If you want to save your position, color, brightness and amount of particles, then press p, and if you want to load something then press o (NOTE: The only thing you can do while the particle simulation is running is save). You can also press m to mute or unmute. Save for the thumbnail: x-115 y-57 c-34 b-91 p300 Updates: v1.0 (Apr 4 2021) - Shared! v1.1 (Apr 6 2021) - Added muting/unmuting and fixed loading! :D Music used: 4 A.M - Animal Crossing New Leaf 9 P.M - Animal Crossing New Leaf