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by TazeTSchnitzel 5021 days ago
Microsoft's icon format is remarkably flexible and backwards-compatible. It's grown from what was once a 32x32 1-bit icon format, to one which supports multiple versions of the same icon, from resolutions ranging from the tiny 16x16 to the huge 256x256, and supporting 1-bit, 16-bit, 24-bit, and now even 32-bit (alpha transparent) colour, with PNG compression.

And the great thing about it, of course, is every browser supports it. Even the Nintendo DS.