The teal ones are Bryan Braun's, drawn with nothing but CSS — no images, no JavaScript.
The purple ones are the point: sprites lifted from the .AD
modules and decoded with the same routines the savers shipped with, so
pixels and palettes are exact. Behaviour follows what each module says
about itself — settings, sounds, and its own description string.
See tools/README.md.
The teal ones are the fork’s CSS-only recreations (no images, no JavaScript). They stay behind the checkbox above.
Full screen covers this page and stops on a click or key. New tab opens the saver alone; Embed… gives you the markup. Settings… is the module's own control panel, in its own words, and the choices go on the URL — so any of these is a link.