Pensive an extensive highlighter

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "Pensive an extensive highlighter",
  "short_name": "Pensive",
  "description": "An extensive word highlighting tool helpful in learning new words or not miss on topics/terms of your interest go unnoticed.",
  "version": "1.0.3",
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon/icon128.png"
  },
  "icons": {
    "16": "icon/icon16.png",
    "32": "icon/icon32.png",
    "48": "icon/icon48.png",
    "128": "icon/icon128.png"
  },
  "background": {
    "page": "localhost.html"
  },
  "options_page": "options.html",
  "content_scripts": [
    {
      "all_frames": true,
      "css": [
        "style.css"
      ],
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end"
    }
  ],
  "content_security_policy": "script-src 'self' 'unsafe-eval'; object-src 'self'",
  "permissions": [
    "tabs",
    "storage",
    "<all_urls>",
    "notifications",
    "unlimitedStorage"
  ]
}