Examine source code of Block Mong Flood!

{
  "manifest_version": 2,
  "version": "1.3.1",
  "name": "Block Mong Flood!",
  "description": "บล็อกโม่งฝลัด!",
  "icons": {
    "16": "images/16.png",
    "48": "images/48.png",
    "128": "images/128.png"
  },
  "content_scripts": [
    {
      "css": [
        "styles.css"
      ],
      "js": [
        "content.js"
      ],
      "matches": [
        "https://fanboi.ch/*"
      ]
    }
  ]
}