Examine source code of Schedule++

{
  "manifest_version": 2,
  "name": "Schedule++",
  "version": "0.3",
  "description": "Adds additional features to college scheduling portals.",
  "icons": {
    "16": "icon/spp_logo_16.png",
    "32": "icon/spp_logo_32.png",
    "64": "icon/spp_logo_64.png",
    "128": "icon/spp_logo_128.png"
  },
  "content_scripts": [
    {
      "js": [
        "inject.js"
      ],
      "matches": [
        "https://prd.ps.pitt.edu/*"
      ]
    }
  ],
  "web_accessible_resources": [
    "scripts/*",
    "spp_data/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{26d35647-dea4-43a9-988e-219c0000599d}"
    }
  }
}