Examine source code of Solimons

{
  "manifest_version": 3,
  "name": "Solimons",
  "description": "Value and RAP viewer for limited items on Solario.",
  "version": "1.1",
  "action": {
    "default_icon": "icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "solimons-ext@solimons.com"
    },
    "safari": {
      "strict_min_version": "14"
    }
  },
  "icons": {
    "16": "icons/icon16.png",
    "32": "icons/icon32.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "content_scripts": [
    {
      "js": [
        "scripts/trademake.js"
      ],
      "matches": [
        "https://solario.ws/trade/*"
      ]
    },
    {
      "js": [
        "scripts/tradepage.js"
      ],
      "matches": [
        "https://solario.ws/trade/view/*"
      ]
    },
    {
      "js": [
        "scripts/catalog.js"
      ],
      "matches": [
        "https://solario.ws/catalog/",
        "https://solario.ws/catalog/?*"
      ]
    },
    {
      "js": [
        "scripts/catalogitem.js"
      ],
      "matches": [
        "https://solario.ws/catalog/*"
      ]
    },
    {
      "js": [
        "scripts/userprofile.js"
      ],
      "matches": [
        "https://solario.ws/users/*"
      ]
    }
  ]
}