Examine source code of Student Absence Tracker

{
  "manifest_version": 3,
  "name": "Student Absence Tracker - Sapphire LMS",
  "version": "1.0.3",
  "description": "Shows absence icons next to student names in Sapphire LMS attendance pages",
  "permissions": [],
  "background": {
    "service_worker": "background.js",
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://wellsboro-grades.k12system.com/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "absence-tracker@wordtotheboro.org",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}