Examine source code of Tab Reorder

{
  "version": "0.1.1resigned1",
  "manifest_version": 2,
  "name": "Tab Reorder",
  "permissions": [
    "storage"
  ],
  "short_name": "tabreorder",
  "background": {
    "page": "lib/chrome/background.html"
  },
  "homepage_url": "http://mybrowseraddon.com/tab-reorder.html",
  "options_ui": {
    "chrome_style": true,
    "page": "data/options/options.html"
  },
  "description": "Move the active tab to the left or right directions via toolbar button (or keyboard shortcut).",
  "commands": {
    "move-tab": {
      "description": "Reorder Tab",
      "suggested_key": {
        "default": "Alt+Shift+A",
        "mac": "Alt+Shift+A"
      }
    },
    "reverse-direction": {
      "description": "Reverse Direction",
      "suggested_key": {
        "default": "Alt+Shift+R",
        "mac": "Alt+Shift+R"
      }
    }
  },
  "browser_action": {
    "default_title": "Tab Reorder",
    "default_icon": {
      "16": "data/icons/16.png",
      "32": "data/icons/32.png",
      "48": "data/icons/48.png",
      "64": "data/icons/64.png"
    }
  },
  "icons": {
    "16": "data/icons/16.png",
    "32": "data/icons/32.png",
    "48": "data/icons/48.png",
    "64": "data/icons/64.png",
    "128": "data/icons/128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c3fbaa10-ddae-4329-8bc2-73b677784f64}"
    }
  }
}