Examine source code of SellerPlus For Amazon

{
  "name": "SellerPlus For Amazon",
  "description": "Enhance the Amazon Seller Central Experience ",
  "version": "1.22",
  "manifest_version": 3,
  "browser_specific_settings": {
    "gecko": {
      "id": "sellerPlus@radiuscraft.com"
    }
  },
  "action": {
    "default_popup": "Blocks/Extra/Popup.html",
    "default_icon": {
      "16": "Arts/icon_16.png",
      "32": "Arts/icon_32.png",
      "48": "Arts/icon_48.png",
      "64": "Arts/icon_64.png",
      "128": "Arts/icon_128.png"
    }
  },
  "icons": {
    "16": "Arts/icon_16.png",
    "32": "Arts/icon_32.png",
    "48": "Arts/icon_48.png",
    "64": "Arts/icon_64.png",
    "128": "Arts/icon_128.png"
  },
  "background": {
    "scripts": [
      "Scripts/Plugins/background.js"
    ]
  },
  "content_scripts": [
    {
      "js": [
        "Scripts/Plugins/Helper.js",
        "Scripts/Plugins/clusterize.min.js",
        "Scripts/Plugins/dexie.js",
        "Scripts/Plugins/StorageHelperFirefox.js",
        "Scripts/Plugins/datepicker.js",
        "Scripts/coreKP.js"
      ],
      "matches": [
        "https://sellercentral.amazon.in/*",
        "https://advertising.amazon.in/*"
      ],
      "all_frames": false
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "Arts/*"
      ],
      "matches": [
        "https://sellercentral.amazon.in/*",
        "https://advertising.amazon.in/*"
      ],
      "use_dynamic_url": true
    },
    {
      "resources": [
        "Styles/*"
      ],
      "matches": [
        "https://sellercentral.amazon.in/*",
        "https://advertising.amazon.in/*"
      ],
      "use_dynamic_url": true
    },
    {
      "resources": [
        "Blocks/*"
      ],
      "matches": [
        "https://sellercentral.amazon.in/*",
        "https://advertising.amazon.in/*"
      ],
      "use_dynamic_url": true
    }
  ],
  "permissions": [
    "storage",
    "tabs",
    "unlimitedStorage"
  ]
}