Physics sandbox with adjustable pendulum length and mass swinging to knock stacked shapes locally.

A bright full-page rainbow wash cycles with adjustable strength and shimmer speed.

Spin a glowing ornate wheel to reveal random fortunes with lock and reset controls.

Create animated light paintings with particle trails, force fields, palettes, exposure controls, and live gestures.

Creates a circular magnifying lens overlay that enlarges and brightens the selected text with a subtle glow ring.

Soft white talcum dust textures pulse in rhythmic clusters across the entire page background.