Examine source code of Canvas Quiz Loader

{
  "manifest_version": 2,
  "name": "Canvas Quiz Loader",
  "short_name": "Quiz Loader",
  "version": "0.5.4",
  "description": "Automatically load correct answers from previous quiz attempts.",
  "icons": {
    "16": "assets/img/icon16.png",
    "48": "assets/img/icon48.png",
    "128": "assets/img/icon128.png"
  },
  "permissions": [
    "https://*.instructure.com/*",
    "https://*.edu/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://*.instructure.com/courses/*/quizzes/*/take*",
        "*://*.edu/courses/*/quizzes/*/take*"
      ],
      "js": [
        "quiz-loader/browser-polyfill.min.js",
        "quiz-loader/index.js"
      ],
      "css": [
        "quiz-loader/index.css"
      ]
    }
  ],
  "web_accessible_resources": [
    "quiz-loader/injectable/get-env.js"
  ],
  "browser_action": {
    "default_icon": "assets/img/icon128.png",
    "default_popup": "popup/index.html",
    "default_title": "Read me"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{7628edff-9a0d-4e15-81d0-d7f1e1ff9bb0}"
    }
  }
}