Examine source code of Salary Seeker

{
  "icons": {
    "16": "icon16.plasmo.2577fc03.png",
    "32": "icon32.plasmo.d583dc1e.png",
    "48": "icon48.plasmo.e0fcfb1d.png",
    "64": "icon64.plasmo.e6259081.png",
    "128": "icon128.plasmo.96a1ede9.png"
  },
  "manifest_version": 3,
  "action": {
    "default_icon": {
      "16": "icon16.plasmo.2577fc03.png",
      "32": "icon32.plasmo.d583dc1e.png",
      "48": "icon48.plasmo.e0fcfb1d.png",
      "64": "icon64.plasmo.e6259081.png",
      "128": "icon128.plasmo.96a1ede9.png"
    }
  },
  "version": "2.0.6",
  "author": "cheesestringer",
  "name": "Salary Seeker",
  "description": "Take the guess work out of job hunting.",
  "content_scripts": [
    {
      "matches": [
        "https://www.seek.com.au/*",
        "https://www.seek.co.nz/*",
        "https://*.seek.com/*"
      ],
      "js": [
        "seekJob.ac151f0b.js"
      ],
      "css": []
    },
    {
      "matches": [
        "https://www.seek.com.au/*",
        "https://www.seek.co.nz/*",
        "https://*.seek.com/*"
      ],
      "js": [
        "seekListing.92849406.js"
      ],
      "css": []
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{33001643-9e70-4228-93a8-5614e78f7752}"
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "https://www.seek.com.au/*",
        "https://www.seek.co.nz/*",
        "https://*.seek.com/*"
      ],
      "resources": [
        "seekJob.79850b49.svg",
        "seekJob.029b484f.css"
      ]
    },
    {
      "matches": [
        "https://www.seek.com.au/*",
        "https://www.seek.co.nz/*",
        "https://*.seek.com/*"
      ],
      "resources": [
        "seekJob.79850b49.svg",
        "seekJob.029b484f.css"
      ]
    }
  ]
}