Pro theme · Ambient New Tab for Chrome & Edge
The Gray-Scott reaction, kept permanently off balance so it never freezes: cells divide, spirals turn, labyrinths fold, and your cursor wipes a trail that regrows.
Free to install. Reaction-Diffusion unlocks with Pro, $19 once, no subscription.
Reaction-Diffusion runs the Gray-Scott model on the New Tab page: two virtual chemicals that diffuse and react, producing the spots, stripes and coral shapes that biologists call Turing patterns. Most simulations settle into a still labyrinth; this one is tuned to never settle.
Nothing is a video. The scene is generated live on your graphics card with WebGL, so it never loops and never looks the same twice.
Ambient New Tab is free to install, with three free themes. Reaction-Diffusion is a Pro theme. Pro is a one-time $19 purchase, no subscription, and it unlocks every Pro theme, music sync, and every theme we release in the future. You can preview Reaction-Diffusion full screen before you buy: open the Themes panel and rest your mouse on it. Changed your mind? 14-day refund, no questions.
WebGL2 with floating-point textures, which every recent Chrome on a desktop or laptop has. Without it a still cell pattern in the same palette is shown.
It is a Pro theme. Pro is a one-time $19 purchase, no subscription, that unlocks every Pro theme, music sync, and every future theme.
Yes. Gray-Scott is one of the reaction-diffusion systems used to model how spots and stripes form on skin, shells and coral.
No. It's a desktop browser extension for Chrome and Edge on Windows, macOS, Linux and ChromeOS. If you're reading this on a phone, send yourself the link.