Examine source code of clean-read

{
  "manifest_version": 2,
  "name": "clean-read",
  "version": "1.1resigned1",
  "description": "Hides refs on science direct articles",
  "icons": {
    "48": "icons/lucidify.svg"
  },
  "permissions": [
    "activeTab"
  ],
  "browser_action": {
    "default_icon": "icons/lucidify.svg",
    "browser_style": true,
    "default_title": "Lucidify",
    "default_popup": "popup/menu.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8512fdb3-b295-4c0d-9851-c9e7cfa5eb1a}"
    }
  }
}