Examine source code of Chons Inventory Helper

{
  "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"
    },
    "default_popup": "popup.html"
  },
  "version": "0.2.3",
  "author": "chon",
  "name": "Chons Inventory Helper",
  "description": "An extension that helps you list multiple items on steam, fast.",
  "permissions": [
    "storage"
  ],
  "content_scripts": [
    {
      "matches": [
        "https://steamcommunity.com/id/*/inventory*"
      ],
      "js": [
        "Button0.38046171.js"
      ],
      "all_frames": true,
      "css": []
    },
    {
      "matches": [
        "https://steamcommunity.com/id/*/inventory*"
      ],
      "js": [
        "Button1.f6f503b4.js"
      ],
      "all_frames": true,
      "css": []
    },
    {
      "matches": [
        "https://steamcommunity.com/id/*/inventory*"
      ],
      "js": [
        "ConfirmDialog.97311ed2.js"
      ],
      "all_frames": true,
      "css": []
    },
    {
      "matches": [
        "https://steamcommunity.com/id/*/inventory*"
      ],
      "js": [
        "Manager.78e4210c.js"
      ],
      "all_frames": true,
      "css": []
    },
    {
      "matches": [
        "https://steamcommunity.com/id/*/inventory*"
      ],
      "js": [
        "ItemOverlay.35a92967.js"
      ],
      "all_frames": true,
      "css": []
    }
  ],
  "host_permissions": [
    "https://steamcommunity.com/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "chons-inventory-helper@austinchoncek.com"
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "https://steamcommunity.com/*"
      ],
      "resources": [
        "Button0.f6e8a82e.css"
      ]
    },
    {
      "matches": [
        "https://steamcommunity.com/*"
      ],
      "resources": [
        "Button0.f6e8a82e.css"
      ]
    },
    {
      "matches": [
        "https://steamcommunity.com/*"
      ],
      "resources": [
        "ConfirmDialog.935e5e6d.css"
      ]
    },
    {
      "matches": [
        "https://steamcommunity.com/*"
      ],
      "resources": [
        "Button0.f6e8a82e.css"
      ]
    },
    {
      "matches": [
        "https://steamcommunity.com/*"
      ],
      "resources": [
        "Button0.f6e8a82e.css"
      ]
    }
  ]
}