Examine source code of Confound Notes

{
  "manifest_version": 2,
  "name": "Confound Comments",
  "version": "1.6",
  "chrome_url_overrides": {
    "newtab": "sites.html"
  },
  "homepage_url": "http://confound.com",
  "description": "Make Notes and Save Information for Each and Every Current URL you browse. The Information is saved in a Toolbar Icon for easy access. Use this as a reference guide, notes, comments, or whatever else it may come in handy for.",
  "applications": {
    "gecko": {
      "strict_min_version": "48.0"
    }
  },
  "icons": {
    "48": "icons/quicknote-32.png"
  },
  "sidebar_action": {
    "default_icon": "icons/quicknote-32.png",
    "default_title": "Comments",
    "default_panel": "sidebar/panel.html"
  },
  "permissions": [
    "storage",
    "tabs",
    "theme",
    "activeTab",
    "history",
    "topSites"
  ],
  "browser_action": {
    "default_icon": {
      "32": "icons/quicknote-32.png"
    },
    "default_title": "URL Comments",
    "default_popup": "popup/quicknote.html"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "_execute_sidebar_action": {
      "suggested_key": {
        "default": "Ctrl+Shift+Y"
      }
    }
  }
}