Examine source code of Paperview Publisher

{
  "manifest_version": 2,
  "version": "0.2.1",
  "name": "__MSG_extension_name__",
  "description": "__MSG_extension_description__",
  "author": "__MSG_extension_author__",
  "default_locale": "en",
  "permissions": [
    "storage"
  ],
  "optional_permissions": [
    "clipboardWrite"
  ],
  "icons": {
    "48": "assets/images/paperview_logo_48x48.png",
    "96": "assets/images/paperview_logo_96x96.png"
  },
  "background": {
    "page": "background.html"
  },
  "browser_action": {
    "browser_style": false,
    "default_area": "navbar",
    "default_icon": {
      "16": "assets/images/paperview_logo_16x16.png",
      "32": "assets/images/paperview_logo_32x32.png"
    },
    "default_title": "__MSG_extension_page_action_default_title__"
  },
  "options_ui": {
    "browser_style": false,
    "chrome_style": false,
    "open_in_tab": true,
    "page": "extension_options/index.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{77b26062-328d-43cc-95ec-bf5909f13c33}"
    }
  }
}