Examine source code of Highlight

{
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Highlight",
    "default_popup": "popup.html"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Ctrl+Alt+B",
        "mac": "MacCtrl+Alt+B"
      },
      "description": "Creates a Highlight."
    }
  },
  "icons": {
    "48": "icon.png",
    "96": "icon@2x.png"
  },
  "manifest_version": 2,
  "name": "Highlight",
  "description": "An extension that saves your place in the page.",
  "permissions": [
    "bookmarks",
    "*://*/*"
  ],
  "version": "0.0.7"
}