Examine source code of FullwidthSpice

{
  "description": "make spiceworks dashboard full-width",
  "manifest_version": 2,
  "name": "FullwidthSpice",
  "version": "1.1",
  "homepage_url": "https://markramosonline.com",
  "icons": {
    "48": "icons/miong.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.spiceworks.com/tickets/*"
      ],
      "js": [
        "fullwidify.js"
      ]
    }
  ]
}