Examine source code of Caesar+

{
  "name": "Caesar+",
  "description": "Improve Caesar class search",
  "version": "1.72",
  "manifest_version": 2,
  "permissions": [
    "storage",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.caesar.ent.northwestern.edu/*PT_AGSTARTPAGE_NUI*"
      ],
      "js": [
        "caesar.js"
      ]
    }
  ]
}