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canvas effects

A free web demo — play it in your browser, no install. Gloss for website backgrounds.. Eight animated greyscale backgrounds for a 2D canvas, with ordered dithering. They sit behind body text. Each one changes the page colour slightly and does not become a picture, so a reader should not notice it. There is no WebGL, no shaders and no dependencies. The…

by @TokyoDanInJapan · TokyoDanInJapan/canvas-effects on GitHubLANG TypeScriptHOSTED ON TOKYODANINJAPAN.GITHUB.IOUPDATED 13 Sep 2026

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Controls: Press and drag to pick up a blob and throw it · Press and drag to aim it

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From the README

Eight animated greyscale backgrounds for a 2D canvas, with ordered dithering. They sit behind body text. Each one changes the page colour slightly and does not become a picture, so a reader should not notice it.

There is no WebGL, no shaders and no dependencies. The library uses a 2D context, typed arrays and putImageData. All eight effects together are 23.7 kB minified and gzipped.

An unrelated package already uses the name canvas-effects on npm, so install this one from GitHub. npm keeps the package's own name, so imports are still from 'canvas-effects'.

Read the full README on GitHub →

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