Dark Mode For Facebook Messenger

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 3,
  "name": "Dark Mode For Facebook Messenger",
  "short_name": "DarkMode",
  "description": "Swap between dark and light mode in Facebook Messenger.",
  "version": "0.0.1",
  "icons": {
    "32": "assets/[email protected]",
    "128": "assets/[email protected]"
  },
  "action": {
    "default_title": "Settings For Dark Style Messenger",
    "default_popup": "popup.html",
    "default_icon": {
      "32": "assets/[email protected]",
      "128": "assets/[email protected]"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.messenger.com/*"
      ],
      "css": [
        "styles/stylesheet.css"
      ],
      "js": [
        "js/settings.js",
        "js/init.js",
        "js/config.js"
      ]
    }
  ],
  "permissions": [
    "storage",
    "tabs"
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "assets/logo.svg",
        "assets/facebook-logo.svg",
        "assets/midnight-logo.svg",
        "assets/deepblue-logo.svg",
        "assets/darkstyle-logo.svg",
        "pages/settings.html"
      ],
      "matches": [
        "*://*.messenger.com/*"
      ]
    }
  ]
}