Markit - Highlighter and Note Taker.

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Markit - Highlighter and Note Taker.",
  "version": "3.2",
  "description": "Highlight and add notes to any text on the web with Markit.",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "permissions": [
    "storage",
    "activeTab",
    "tabs",
    "http://*/",
    "https://*/"
  ],
  "commands": {
    "highlight_text": {
      "suggested_key": {
        "mac": "Command+K",
        "default": "Ctrl+K"
      },
      "description": "Highlight Selected Text"
    },
    "clear_storage": {
      "suggested_key": {
        "mac": "Command+Shift+A",
        "default": "Ctrl+Shift+A"
      },
      "description": "Clear highlights for current URL"
    }
  },
  "browser_action": {
    "default_popup": "popup.html"
  },
  "icons": {
    "16": "images/16.png",
    "32": "images/32.png",
    "48": "images/48.png",
    "128": "images/128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "run_at": "document_end",
      "js": [
        "content_script.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ],
  "manifest_version": 2
}