Examine source code of iRacing Tools

{
  "manifest_version": 2,
  "name": "iRacing Tools",
  "version": "1.0",
  "description": "This extension highlights rows in EventResult and adds SR and IR to the CareerStats",
  "icons": {
    "48": "icons/border-48.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://members.iracing.com/membersite/member/CareerStats.do*"
      ],
      "js": [
        "careerStats.js"
      ]
    },
    {
      "matches": [
        "*://members.iracing.com/membersite/member/EventResult.do*"
      ],
      "js": [
        "eventResult.js"
      ]
    }
  ]
}