Examine source code of BonusVarsler (for Trumf, OBOS, DNB, re:member++)

{
  "manifest_version": 3,
  "name": "BonusVarsler",
  "version": "9.1",
  "description": "__MSG_extensionDescription__",
  "default_locale": "no",
  "homepage_url": "https://github.com/kristofferR/BonusVarsler",
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "128": "icons/icon-128.png",
    "256": "icons/icon-256.png"
  },
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "https://raw.githubusercontent.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*"
      ],
      "exclude_matches": [
        "http://localhost/*",
        "https://localhost/*",
        "http://127.0.0.1/*",
        "https://127.0.0.1/*",
        "http://[::1]/*",
        "https://[::1]/*",
        "http://*.local/*",
        "https://*.local/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle",
      "all_frames": false
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": false
  },
  "action": {
    "default_icon": {
      "16": "icons/icon-16.png",
      "32": "icons/icon-32.png",
      "48": "icons/icon-48.png"
    },
    "default_title": "BonusVarsler"
  },
  "web_accessible_resources": [
    {
      "resources": [
        "_locales/*/*.json"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "trumf-bonusvarsler-lite@kristofferR",
      "strict_min_version": "142.0",
      "granted_host_permissions": true,
      "data_collection_permissions": {
        "required": [
          "none"
        ],
        "optional": []
      }
    }
  }
}