Examine source code of Changelogger

{
  "manifest_version": 2,
  "name": "__MSG_extensionName__",
  "version": "1.1.1",
  "description": "__MSG_extensionDescription__",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "background": {
    "scripts": [
      "background.bundle.js"
    ]
  },
  "browser_action": {
    "default_popup": "changelog.html",
    "browser_style": true,
    "default_icon": "icons/icon.svg",
    "theme_icons": [
      {
        "light": "icons/icon-light.svg",
        "dark": "icons/icon.svg",
        "size": 16
      }
    ]
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "permissions": [
    "management",
    "storage",
    "notifications",
    "https://addons.mozilla.org/api/v4/addons/addon/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "changelogger@r01"
    }
  },
  "default_locale": "en_US"
}