Examine source code of Tab Position Options

{
  "manifest_version": 2,
  "name": "Tab Position Options",
  "description": "Tab Position Options",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "96": "icon96.png"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "run_at": "document_start",
      "js": [
        "contentscript.js"
      ],
      "matches": [
        "<all_urls>"
      ]
    }
  ],
  "commands": {
    "myCommandSORTTABTITLE": {
      "suggested_key": {
        "default": "Alt+L"
      },
      "description": "Send tab sort command"
    },
    "myCommandSORTTABURL": {
      "suggested_key": {
        "default": "Alt+U"
      },
      "description": "Send tab sort command"
    },
    "myCommandCRNT2ACT": {
      "suggested_key": {
        "default": "Alt+C"
      },
      "description": "Send tab sort command"
    }
  },
  "content_security_policy": "script-src 'self'; object-src 'self'",
  "minimum_chrome_version": "22",
  "applications": {
    "gecko": {
      "id": "Tab_Position_Options_senna5150ando@gmail.com",
      "strict_min_version": "57.0"
    }
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "permissions": [
    "tabs",
    "storage",
    "webNavigation"
  ],
  "version": "5.9"
}