Fullscreen hitbox.io, persistent game volume, and persistent jukebox state.
QOLbox makes hitbox.io fullscreen, and its volume settings less annoying by remembering your game and jukebox volume, letting you use the mouse wheel on the game volume control and jukebox knob, keeping the jukebox muted if you want it muted, and making volume differences feel more natural (with exponential volume scaling).
Expect instability/bugs (!), this script is WIP.
Written by GPT-5.4 in the Codex CLI.