Charcoal: Dark Mode for Messenger

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Charcoal: Dark Mode for Messenger",
  "short_name": "Charcoal",
  "description": "Unofficial Messenger dark mode. Easily swap between dark and light mode.",
  "version": "1.5.0",
  "icons": {
    "128": "assets/[email protected]"
  },
  "action": {
    "default_popup": "charcoal_settings_popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.messenger.com/*"
      ],
      "css": [
        "styles/stylesheet.css"
      ],
      "js": [
        "js/settings.js",
        "js/init.js",
        "js/charcoal_settings.js"
      ]
    }
  ],
  "permissions": [
    "storage"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "assets/charcoal-messenger.svg",
        "assets/facebook-messenger.svg",
        "assets/midnight-messenger.svg",
        "assets/deepblue-messenger.svg",
        "charcoal_settings.html",
        "onboarding_dropdown.html"
      ],
      "matches": [
        "*://*/*"
      ]
    }
  ]
}