Examine source code of プライミー

{
  "icons": {
    "16": "icon16.plasmo.1882dbdf.png",
    "32": "icon32.plasmo.53e76b13.png",
    "48": "icon48.plasmo.3c5fb3be.png",
    "64": "icon64.plasmo.367ade56.png",
    "128": "icon128.plasmo.72422a76.png"
  },
  "manifest_version": 3,
  "action": {
    "default_icon": {
      "16": "icon16.plasmo.1882dbdf.png",
      "32": "icon32.plasmo.53e76b13.png",
      "48": "icon48.plasmo.3c5fb3be.png",
      "64": "icon64.plasmo.367ade56.png",
      "128": "icon128.plasmo.72422a76.png"
    },
    "default_popup": "popup.html"
  },
  "version": "2.0.0",
  "author": "OK Computer Inc.",
  "name": "プライミー",
  "description": "今見ているアイテムの最安値を自動で検索してくれるお得アプリです",
  "background": {
    "scripts": [
      "static/background/index.js"
    ]
  },
  "permissions": [
    "storage",
    "cookies"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.33f96a7a.js"
      ],
      "css": [
        "content.c3f8b9ee.css"
      ]
    }
  ],
  "host_permissions": [
    "<all_urls>"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "firefox@primy.jp"
    }
  },
  "web_accessible_resources": [
    {
      "matches": [
        "<all_urls>"
      ],
      "resources": [
        "content.0f6f1fe8.css",
        "content.27f3e744.css",
        "content.d4da8c0f.css",
        "content.c92895db.css",
        "content.27be72a7.css",
        "content.faba6c09.css",
        "content.7af54349.css",
        "content.6d2a04ea.css",
        "content.1beb4cd0.css",
        "content.cad6a89f.css",
        "content.cce62b99.css",
        "content.4c0a119c.css",
        "content.139532e9.css"
      ]
    }
  ]
}