Examine source code of Testudo Plus Plus

{
  "name": "Testudo++",
  "version": "1.1.0",
  "description": "A streamlined process for reviewing course and professor evaluations integrated as a browser extension on https://testudo.umd.edu/.",
  "permissions": [
    "tabs",
    "background"
  ],
  "host_permissions": [
    "https://*.testudo.umd.edu/*",
    "https://planetterp.com/*",
    "https://ratemyprofessors.com/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://*.testudo.umd.edu/*",
        "https://planetterp.com/*",
        "https://www.ratemyprofessors.com/*"
      ],
      "css": [
        "contentScript.css"
      ],
      "js": [
        "contentScript.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "nguyen.trong.joshua@gmail.com"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/*"
      ],
      "matches": [
        "https://*.testudo.umd.edu/*"
      ]
    }
  ],
  "action": {
    "default_icon": {
      "16": "assets/retro_testudo_logo.png",
      "24": "assets/retro_testudo_logo.png",
      "32": "assets/retro_testudo_logo.png",
      "48": "assets/retro_testudo_logo.png",
      "64": "assets/retro_testudo_logo.png",
      "128": "assets/retro_testudo_logo.png"
    },
    "default_title": "Testudo++",
    "default_popup": "popup.html"
  },
  "manifest_version": 3
}