Examine source code of PRO OC

{
  "name": "PRO OC",
  "version": "2.5.8",
  "author": "Lukáš Drahník <ldrahnik@gmail.com>",
  "manifest_version": 2,
  "description": "Rozšíření přidává užitečné funkce do modulu Pacienti COVID-19 a Žádanky testů COVID-19.",
  "background": {
    "scripts": [
      "background/background.js"
    ],
    "persistent": true
  },
  "browser_action": {
    "default_popup": "popup/popup.html"
  },
  "options_ui": {
    "page": "options/options.html",
    "browser_style": true
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.ksrzis.cz/*"
      ],
      "js": [
        "content/content.js"
      ]
    }
  ],
  "commands": {
    "PCRpojistovna": {
      "suggested_key": {
        "default": "Ctrl+Shift+P"
      },
      "description": "PCR pojišťovna"
    },
    "PCRsamoplatce": {
      "suggested_key": {
        "default": "Ctrl+Shift+O"
      },
      "description": "PCR samoplátce"
    },
    "AGpojistovna": {
      "suggested_key": {
        "default": "Ctrl+Shift+A"
      },
      "description": "AG pojišťovna"
    },
    "AGsamoplatce": {
      "suggested_key": {
        "default": "Ctrl+Shift+S"
      },
      "description": "AG samoplátce"
    }
  },
  "permissions": [
    "<all_urls>",
    "tabs",
    "cookies",
    "storage",
    "activeTab"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{1934b037-90c0-4bf8-a981-9eac165e75d1}"
    }
  }
}