Lookbook wrote this package from scratch: the hero design, the sky and cloud shader, the two-canvas layering and its contrast rules, the palettes, the still picture, the examples and the Motion Heroes kit. The shader uses standard techniques (value noise, fbm, domain warping, Beer-Lambert opacity, a short light march) written here; no third-party code is included. Credits and licences for the open-source software and fonts it uses are in NOTICE.md inside the download.