Examine source code of Improve 209

{
  "manifest_version": 3,
  "name": "Improve 209",
  "description": "Some changes to the csc209 (2023 winter) website coordinated by Professor Rosenbloom",
  "version": "0.12.5",
  "icons": {
    "16": "logo/logo-16.png",
    "48": "logo/logo-48.png",
    "128": "logo/logo-128.png"
  },
  "options_page": "settings/settings.html",
  "action": {
    "default_title": "Improve 209",
    "default_popup": "popup/popup.html"
  },
  "permissions": [
    "scripting"
  ],
  "host_permissions": [
    "*://mcs.utm.utoronto.ca/~209/23s/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://mcs.utm.utoronto.ca/~209/23s/*"
      ],
      "css": [
        "foreground.css"
      ],
      "js": [
        "foreground.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "ihiagfbmgngcigolcmbgaiaememfamgf@logonoff.co",
      "strict_min_version": "109.0"
    }
  }
}