Examine source code of CoinGecko Candy Collector

{
  "name": "__MSG_appName__",
  "description": "__MSG_appDesc__",
  "version": "1.0.4",
  "manifest_version": 2,
  "default_locale": "en",
  "permissions": [
    "tabs",
    "https://www.coingecko.com/account/candy*",
    "https://www.coingecko.com/candy*",
    "https://www.coingecko.com/*/candy*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.coingecko.com/account/candy*",
        "https://www.coingecko.com/candy*",
        "https://www.coingecko.com/*/candy*"
      ],
      "js": [
        "content.js"
      ]
    }
  ],
  "browser_action": {},
  "icons": {
    "16": "images/logo16.png",
    "32": "images/logo32.png",
    "64": "images/logo64.png",
    "128": "images/logo128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{202de101-c0f7-47ac-b673-404b65dcdb37}"
    }
  }
}