Examine source code of 2ch design by Kompoman32

{
  "manifest_version": 2,
  "name": "2ch design",
  "version": "1.18.1",
  "description": "Design for 2ch by Kompoman32",
  "permissions": [
    "storage",
    "tabs"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://2ch.hk/*/*",
        "*://beta.2ch.hk/*/*",
        "*://2ch.life/*/*",
        "*://beta.2ch.life/*/*"
      ],
      "js": [
        "default.js",
        "scripts/main.js",
        "scripts/modals.js",
        "scripts/ext.js"
      ],
      "css": [
        "./style.css",
        "./modals-style.css"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://2ch.hk/",
        "*://beta.2ch.hk/",
        "*://2ch.life/",
        "*://beta.2ch.life/"
      ],
      "js": [
        "default.js",
        "scripts/home.js"
      ],
      "css": [],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://2ch.hk/*/src/*",
        "*://beta.2ch.hk/*/src/*",
        "*://2ch.life/*/src/*",
        "*://beta.2ch.life/*/src/*"
      ],
      "js": [
        "scripts/src.js"
      ],
      "css": [],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://2ch.hk/*/arch/*",
        "*://beta.2ch.hk/*/arch/*",
        "*://2ch.life/*/arch/*",
        "*://beta.2ch.life/*/arch/*"
      ],
      "js": [
        "default.js",
        "scripts/main.js",
        "scripts/modals.js",
        "scripts/arch.js"
      ],
      "css": [],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://arhivach.top/*"
      ],
      "js": [
        "scripts/arhivach.js"
      ],
      "css": [],
      "run_at": "document_end"
    }
  ],
  "page_action": {
    "browser_style": true,
    "default_icon": "settings/favicon.png",
    "default_popup": "settings/options.html",
    "show_matches": [
      "*://2ch.hk/*/*",
      "*://beta.2ch.hk/*/*",
      "*://2ch.life/*/*",
      "*://beta.2ch.life/*/*"
    ],
    "hide_matches": [
      "*://2ch.hk/*/arch",
      "*://2ch.hk/*/arch/*",
      "*://beta.2ch.hk/*/arch",
      "*://beta.2ch.hk/*/arch/*",
      "*://2ch.life/*/arch",
      "*://2ch.life/*/arch/*",
      "*://beta.2ch.life/*/arch",
      "*://beta.2ch.life/*/arch/*"
    ]
  },
  "background": {
    "scripts": [
      "libs/client-zip.min.js",
      "libs/fileSaver.min.js",
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{82551ef5-08cb-4443-9c16-8d5ff38c0bce}"
    }
  }
}