Examine source code of AfterSearchWE

{
  "manifest_version": 2,
  "name": "AfterSearchWE",
  "version": "2.1.7resigned1",
  "description": "A better way for \"Search on page\". This project is aimed at replacing SearchWP.",
  "icons": {
    "48": "icons/ASWE_icon_normal_48.png",
    "96": "icons/ASWE_icon_normal_96.png"
  },
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "find",
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": {
      "48": "icons/ASWE_icon_normal_48.png",
      "96": "icons/ASWE_icon_normal_96.png"
    },
    "default_title": "Mode: Mouseover"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "http://*/*",
        "https://*/*",
        "ftp://*/*"
      ],
      "js": [
        "contentscripts/script.js"
      ],
      "css": [
        "contentscripts/style.css"
      ],
      "run_at": "document_end"
    }
  ],
  "options_ui": {
    "page": "settings-page/options.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c599fb16-82d5-4c17-b07d-8284e2be9535}"
    }
  }
}