Examine source code of Fake StudentVue Grades

{
  "manifest_version": 2,
  "name": "Fake StudentVue Grades",
  "version": "1.3.1",
  "description": "Shows each class's grade as a 100% on StudentVue! (Does not affect your actual grades in StudentVue's database).",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "https://*.edupoint.com/*"
  ],
  "background": {
    "scripts": [
      "main.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b8c1a19d-0626-40ad-abf4-693a4f664352}"
    }
  }
}