Examine source code of Exam Reviewer

{
  "manifest_version": 3,
  "name": "Exam Reviewer: Spoiler-Free Review",
  "version": "1.0.0",
  "description": "Hide previous selections and correct/incorrect spoilers while reviewing Udemy and Tutorials Dojo exams.",
  "permissions": [
    "storage"
  ],
  "host_permissions": [
    "*://*.udemy.com/*",
    "*://*.tutorialsdojo.com/*"
  ],
  "background": {
    "scripts": [
      "src/state.js",
      "src/background.js"
    ]
  },
  "action": {
    "default_icon": "assets/ExamReview-Off.svg",
    "default_title": "Toggle spoiler-free exam review"
  },
  "commands": {
    "toggle-review-mode": {
      "suggested_key": {
        "default": "Alt+Shift+S"
      },
      "description": "Toggle spoiler-free exam review"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.udemy.com/*",
        "*://*.tutorialsdojo.com/*"
      ],
      "css": [
        "src/review-mode.css"
      ],
      "js": [
        "src/review-mode.js",
        "src/content.js"
      ],
      "run_at": "document_start"
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "exam-reviewer@local",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}