Examine source code of Swip

{
  "icons": {
    "16": "icon16.plasmo.87ddb62d.png",
    "32": "icon32.plasmo.38369f2b.png",
    "48": "icon48.plasmo.1958ffe0.png",
    "64": "icon64.plasmo.d4b75682.png",
    "128": "icon128.plasmo.2e986fa7.png"
  },
  "manifest_version": 3,
  "action": {
    "default_icon": {
      "16": "icon16.plasmo.87ddb62d.png",
      "32": "icon32.plasmo.38369f2b.png",
      "48": "icon48.plasmo.1958ffe0.png",
      "64": "icon64.plasmo.d4b75682.png",
      "128": "icon128.plasmo.2e986fa7.png"
    }
  },
  "version": "1.0.2",
  "author": "Swip - assistant shopping",
  "name": "__MSG_extensionName__",
  "description": "__MSG_extensionDescription__",
  "background": {
    "scripts": [
      "static/background/index.js"
    ]
  },
  "permissions": [
    "storage",
    "scripting",
    "unlimitedStorage",
    "alarms",
    "notifications",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "Overlay.a88f9957.js"
      ],
      "css": [
        "Overlay.96f80926.css"
      ]
    },
    {
      "matches": [
        "https://www.google.com/search?q*",
        "https://www.google.fr/search?q*",
        "https://www.google.co.uk/search?q*",
        "https://www.google.es/search?q*",
        "https://www.google.it/search?q*",
        "https://www.google.de/search?q*",
        "https://www.google.ca/search?q*",
        "https://www.google.com.br/search?q*",
        "https://www.google.in/search?q*",
        "https://www.google.co.jp/search?q*",
        "https://www.google.com.mx/search?q*",
        "https://www.google.com.au/search?q*",
        "https://www.google.sg/search?q*",
        "https://www.google.sa/search?q*",
        "https://www.google.ae/search?q*",
        "https://www.google.com.tr/search?q*",
        "https://www.google.com.tw/search?q*",
        "https://www.google.com.hk/search?q*",
        "https://www.google.pl/search?q*",
        "https://www.google.be/search?q*",
        "https://www.google.dk/search?q*",
        "https://www.google.fi/search?q*",
        "https://www.google.no/search?q*"
      ],
      "js": [
        "googleSearchContainer.042f4132.js"
      ],
      "run_at": "document_start",
      "css": [
        "googleSearchContainer.9b90ecab.css",
        "Overlay.96f80926.css"
      ]
    }
  ],
  "default_locale": "en",
  "browser_specific_settings": {
    "gecko": {
      "id": "swip@swipextension.com"
    }
  },
  "web_accessible_resources": [
    {
      "resources": [
        "assets/icon*.png"
      ],
      "matches": [
        "https://*/*"
      ]
    },
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "placeholder.5abda62f.jpg",
        "icon-wishlist-2.5adca554.svg",
        "icon-price.959b5edc.svg",
        "icon-coupon.f38b2026.svg",
        "logo-white.1da012bd.png",
        "icon-success.6323601e.svg",
        "icon-success.d41099e5.css",
        "Overlay.7931b11a.css"
      ]
    },
    {
      "matches": [
        "https://www.google.com/*",
        "https://www.google.fr/*",
        "https://www.google.co.uk/*",
        "https://www.google.es/*",
        "https://www.google.it/*",
        "https://www.google.de/*",
        "https://www.google.ca/*",
        "https://www.google.com.br/*",
        "https://www.google.in/*",
        "https://www.google.co.jp/*",
        "https://www.google.com.mx/*",
        "https://www.google.com.au/*",
        "https://www.google.sg/*",
        "https://www.google.sa/*",
        "https://www.google.ae/*",
        "https://www.google.com.tr/*",
        "https://www.google.com.tw/*",
        "https://www.google.com.hk/*",
        "https://www.google.pl/*",
        "https://www.google.be/*",
        "https://www.google.dk/*",
        "https://www.google.fi/*",
        "https://www.google.no/*"
      ],
      "resources": [
        "placeholder.5abda62f.jpg",
        "icon-wishlist-2.5adca554.svg"
      ]
    }
  ],
  "host_permissions": [
    "https://*/*"
  ]
}