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canon-favicons

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Use when implementing favicons, touch icons, web app icons, or browser tab icons — the full set of sizes and formats needed for modern browsers, iOS home screen, Android, and PWA manifests. Trigger when the user mentions favicon, icon, apple-touch-icon, manifest icons, or browser tab icon.

التثبيت

التثبيت باستخدام Codex أو Claude انسخ هذا Prompt والصقه في Codex أو Claude أو مساعد آخر ليراجع صفحة Skill ويثبّتها لك.

تشغيل في Manus

المصدر

Dragoon0x

Dragoon0x/canon

فتح مستودع GitHub عرض مستودعات المنشئ

تنزيل

تشغيل في Manus

المهن ذات الصلةSOC

استنادا إلى تصنيف SOC المهني

مطوّرو الويبمهن الحاسوب والرياضيات·SOC 15-1254

SKILL.md

readonly

name	canon-favicons
description	Use when implementing favicons, touch icons, web app icons, or browser tab icons — the full set of sizes and formats needed for modern browsers, iOS home screen, Android, and PWA manifests. Trigger when the user mentions favicon, icon, apple-touch-icon, manifest icons, or browser tab icon.

CANON · Favicons

Favicons are the smallest piece of branding and the most often botched. Modern browsers need multiple sizes, formats, and declarations.

The minimal set

<link rel="icon" href="/favicon.ico" sizes="32x32">
<link rel="icon" href="/icon.svg" type="image/svg+xml">
<link rel="apple-touch-icon" href="/apple-touch-icon.png">
<link rel="manifest" href="/manifest.webmanifest">

Files to generate

File	Size	Format	Purpose
`favicon.ico`	32×32 (can embed 16×16)	ICO	Legacy browsers, bookmarks bar
`icon.svg`	Scalable	SVG	Modern browsers (Chrome, Firefox)
`apple-touch-icon.png`	180×180	PNG	iOS home screen
`icon-192.png`	192×192	PNG	Android home screen, PWA
`icon-512.png`	512×512	PNG	PWA splash screen

SVG favicon with dark mode

SVG favicons can adapt to dark mode:

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
  <style>
    rect { fill: #0a0a0a; }
    @media (prefers-color-scheme: dark) {
      rect { fill: #f5f5f5; }
    }
  </style>
  <rect width="32" height="32" rx="4"/>
</svg>

Web app manifest

{
  "name": "My App",
  "short_name": "App",
  "icons": [
    { "src": "/icon-192.png", "sizes": "192x192", "type": "image/png" },
    { "src": "/icon-512.png", "sizes": "512x512", "type": "image/png" }
  ],
  "theme_color": "#0a0a0a",
  "background_color": "#ffffff",
  "display": "standalone"
}

theme_color affects the browser toolbar color on Android.

Design rules

Simple at 16px. If your logo doesn't read at 16×16, simplify it to a lettermark or geometric shape.
No text at small sizes. Text is illegible below 32px.
High contrast against both light and dark browser chrome. Test on light and dark OS themes.
Square. All favicon slots are square. Don't force a horizontal logo into a square; make a square variant.
No transparency for apple-touch-icon. iOS fills transparent areas with black. Use a solid background.

Anti-patterns

Anti-pattern	Why it fails
Only a 16×16 favicon.ico	Blurry on retina, missing from home screens
Full logo crammed into 32px	Illegible
Transparent apple-touch-icon	Black background on iOS
No manifest for PWA	Missing home-screen icon on Android
favicon.png instead of .ico for legacy	Some browsers only check .ico
No SVG favicon	Missing dark-mode adaptation

Audit checklist

favicon.ico at 32×32
SVG favicon for modern browsers
apple-touch-icon.png at 180×180 (no transparency)
192px and 512px PNG for PWA manifest
manifest.webmanifest linked in <head>
Icon reads clearly at 16×16
Tested on light and dark browser chrome
theme_color and background_color set in manifest

Sources

web.dev · "How to Favicon" (Andrey Sitnik)
Apple · Configuring Web Applications (touch icons)
W3C · Web App Manifest
Real Favicon Generator · comprehensive tool

المزيد من هذا المستودع

نفس المستودع

canon-brand-voice

Dragoon0x/canon

Use when defining or auditing a product's written voice — the consistent personality across all UI copy. Covers voice vs tone, voice attribute definition, do/don't tables, and how to keep AI-generated copy on-brand. Trigger when the user mentions brand voice, tone of voice, writing style guide, copy guidelines, or product personality.

2026-04-184

canon-bundle-size

Dragoon0x/canon

Use when auditing or reducing JavaScript and CSS bundle sizes, setting performance budgets, choosing lighter alternatives to heavy libraries, configuring tree shaking, code splitting, and lazy loading. Trigger when the user mentions bundle size, JavaScript size, tree shaking, code splitting, lazy loading, or performance budget.

2026-04-184

canon-color-blindness

Dragoon0x/canon

Use when designing or auditing for color vision deficiency — ensuring that color is never the only visual signal, checking charts and status indicators, picking colorblind-safe palettes, and testing against deuteranopia, protanopia, and tritanopia simulations. Trigger when the user mentions color blindness, color vision, CVD, deuteranopia, protanopia, accessibility color, or color-only signal.

2026-04-184

canon-content-strategy

Dragoon0x/canon

Use when planning content hierarchy, information density, content-first design, microcopy systems, or editorial patterns. Covers the content-before-design principle, content inventory, progressive disclosure, scannability, and content governance. Trigger when the user mentions content strategy, content hierarchy, information architecture, microcopy, or editorial design.

2026-04-184

canon-cursors

Dragoon0x/canon

Use when designing or auditing cursor behavior — matching cursor shape to affordance, custom cursors, drag cursors, resize cursors, and the hover+cursor pairing rule. Trigger when the user mentions cursor, pointer, mouse cursor, drag cursor, or resize handle.

2026-04-184

canon-dark-mode

Dragoon0x/canon

Use when designing, auditing, or implementing dark mode. Covers lightness inversion (not hue shift), elevation via lightness not shadow, surface stacking, contrast rechecking, and the prefers-color-scheme media query. Trigger when the user mentions dark mode, dark theme, night mode, theme toggle, or color scheme.

2026-04-184

name	canon-favicons
description	Use when implementing favicons, touch icons, web app icons, or browser tab icons — the full set of sizes and formats needed for modern browsers, iOS home screen, Android, and PWA manifests. Trigger when the user mentions favicon, icon, apple-touch-icon, manifest icons, or browser tab icon.

CANON · Favicons

Favicons are the smallest piece of branding and the most often botched. Modern browsers need multiple sizes, formats, and declarations.

The minimal set

<link rel="icon" href="/favicon.ico" sizes="32x32">
<link rel="icon" href="/icon.svg" type="image/svg+xml">
<link rel="apple-touch-icon" href="/apple-touch-icon.png">
<link rel="manifest" href="/manifest.webmanifest">

Files to generate

File	Size	Format	Purpose
`favicon.ico`	32×32 (can embed 16×16)	ICO	Legacy browsers, bookmarks bar
`icon.svg`	Scalable	SVG	Modern browsers (Chrome, Firefox)
`apple-touch-icon.png`	180×180	PNG	iOS home screen
`icon-192.png`	192×192	PNG	Android home screen, PWA
`icon-512.png`	512×512	PNG	PWA splash screen

SVG favicon with dark mode

SVG favicons can adapt to dark mode:

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 32 32">
  <style>
    rect { fill: #0a0a0a; }
    @media (prefers-color-scheme: dark) {
      rect { fill: #f5f5f5; }
    }
  </style>
  <rect width="32" height="32" rx="4"/>
</svg>

Web app manifest

{
  "name": "My App",
  "short_name": "App",
  "icons": [
    { "src": "/icon-192.png", "sizes": "192x192", "type": "image/png" },
    { "src": "/icon-512.png", "sizes": "512x512", "type": "image/png" }
  ],
  "theme_color": "#0a0a0a",
  "background_color": "#ffffff",
  "display": "standalone"
}

theme_color affects the browser toolbar color on Android.

Design rules

Simple at 16px. If your logo doesn't read at 16×16, simplify it to a lettermark or geometric shape.
No text at small sizes. Text is illegible below 32px.
High contrast against both light and dark browser chrome. Test on light and dark OS themes.
Square. All favicon slots are square. Don't force a horizontal logo into a square; make a square variant.
No transparency for apple-touch-icon. iOS fills transparent areas with black. Use a solid background.

Anti-patterns

Anti-pattern	Why it fails
Only a 16×16 favicon.ico	Blurry on retina, missing from home screens
Full logo crammed into 32px	Illegible
Transparent apple-touch-icon	Black background on iOS
No manifest for PWA	Missing home-screen icon on Android
favicon.png instead of .ico for legacy	Some browsers only check .ico
No SVG favicon	Missing dark-mode adaptation

Audit checklist

favicon.ico at 32×32
SVG favicon for modern browsers
apple-touch-icon.png at 180×180 (no transparency)
192px and 512px PNG for PWA manifest
manifest.webmanifest linked in <head>
Icon reads clearly at 16×16
Tested on light and dark browser chrome
theme_color and background_color set in manifest

Sources

web.dev · "How to Favicon" (Andrey Sitnik)
Apple · Configuring Web Applications (touch icons)
W3C · Web App Manifest
Real Favicon Generator · comprehensive tool