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July 26th, 2021 × #favicons#webdev#frontend

Hasty Treat - The Surprisingly Exciting World of Favicons

This episode covers different techniques and best practices for favicons, including file formats, sizes, optimization, animation, dark mode support, and more.

Wes Bos

Wes Bos Host

Scott Tolinski

Scott Tolinski Host

or
Show Notes Transcript

In this Hasty Treat, Scott and Wes talk about favicons. Favicons are a bit of mystery and something people don't talk about that often.

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Show Notes

03:48 - What are favicons?

  • Requesting favicons by default /favicon.ico
<link rel="apple-touch-icon" sizes="57x57" href="/apple-icon-57x57.png">
<link rel="apple-touch-icon" sizes="60x60" href="/apple-icon-60x60.png">
<link rel="apple-touch-icon" sizes="72x72" href="/apple-icon-72x72.png">
<link rel="apple-touch-icon" sizes="76x76" href="/apple-icon-76x76.png">
<link rel="apple-touch-icon" sizes="114x114" href="/apple-icon-114x114.png">
<link rel="apple-touch-icon" sizes="120x120" href="/apple-icon-120x120.png">
<link rel="apple-touch-icon" sizes="144x144" href="/apple-icon-144x144.png">
<link rel="apple-touch-icon" sizes="152x152" href="/apple-icon-152x152.png">
<link rel="apple-touch-icon" sizes="180x180" href="/apple-icon-180x180.png">
<link rel="icon" type="image/png" sizes="192x192"  href="/android-icon-192x192.png">
<link rel="icon" type="image/png" sizes="32x32" href="/favicon-32x32.png">
<link rel="icon" type="image/png" sizes="96x96" href="/favicon-96x96.png">
<link rel="icon" type="image/png" sizes="16x16" href="/favicon-16x16.png">
<link rel="manifest" href="/manifest.json">
<meta name="msapplication-TileColor" content="#ffffff">
<meta name="msapplication-TileImage" content="/ms-icon-144x144.png">
<meta name="theme-color" content="#ffffff">

07:38 - Sizing favicons

  • 16x16 is OG - don't do that now
  • You can specify multiple sizes

09:41 - File formats

  • .ico files
  • .png favicons

13:40 - Animated favicons

  • Canvas Base64

11:36 - SVG favicons

17:19 - Dark mode favicons

18:55 - App Coloring

  • <meta name="theme-color" content="#ffffff">
  • Isn't there a new Safari version?

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