Examine source code of アサギ実用化サポート

{
  "manifest_version": 2,
  "applications": {
    "gecko": {
      "id": "make-asagi-usable@nemalesshage"
    }
  },
  "name": "アサギ実用化サポート",
  "version": "0.8.4resigned1",
  "description": "オンラインゲーム「対魔忍アサギ～決戦アリーナ～」のシーンをちょっと実用的にする非公式アドオンです",
  "icons": {
    "16": "data/icon16.png",
    "32": "data/icon32.png",
    "64": "data/icon64.png",
    "128": "data/icon128.png"
  },
  "permissions": [
    "storage"
  ],
  "browser_action": {
    "default_title": "",
    "default_icon": "data/icon32.png",
    "default_popup": "menu.html"
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "web_accessible_resources": [
    "hasc_injection.js",
    "data/options.json"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://osapi.dmm.com/gadgets/ifr*"
      ],
      "all_frames": true,
      "css": [
        "hasc_tune.css"
      ],
      "js": [
        "hasc_tune.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "http://pc-play.games.dmm.co.jp/play/taimanin-asagi*"
      ],
      "css": [
        "frame_tune.css"
      ],
      "js": [
        "frame_tune.js"
      ],
      "run_at": "document_end"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  }
}