Examine source code of Disable Umami

{
  "action": {
    "default_area": "navbar",
    "default_icon": {
      "16": "favicon-16x16.432d4e38.png",
      "32": "favicon-32x32.270b692e.png",
      "180": "apple-touch-icon.0a22887e.png",
      "192": "android-chrome-192x192.bb80e135.png",
      "512": "android-chrome-512x512.5cefc4a0.png"
    },
    "default_popup": "popup.c3630faf.html",
    "default_title": "__MSG_name__"
  },
  "author": "Uiolee",
  "background_color": "#ffffff",
  "browser_specific_settings": {
    "gecko": {
      "id": "{c66020ec-2522-47ff-b252-a6e3fce6efcb}"
    },
    "gecko_android": {
      "id": "{2aa42bf7-4bfa-4f03-926c-9c0420c38994}"
    }
  },
  "content_scripts": [
    {
      "js": [
        "content_scripts.eeb961a7.js"
      ],
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "run_at": "document_idle",
      "css": []
    }
  ],
  "default_locale": "en",
  "description": "__MSG_description__",
  "homepage_url": "https://github.com/uiolee/disable-umami",
  "icons": {
    "16": "favicon-16x16.432d4e38.png",
    "32": "favicon-32x32.270b692e.png",
    "180": "apple-touch-icon.0a22887e.png",
    "192": "android-chrome-192x192.bb80e135.png",
    "512": "android-chrome-512x512.5cefc4a0.png"
  },
  "manifest_version": 3,
  "name": "__MSG_name__",
  "permissions": [
    "storage"
  ],
  "short_name": "__MSG_short_name__",
  "theme_color": "#ffffff",
  "version": "0.2.0"
}