MUTUAL BERSERK and 1/8+0 Beta

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "manifest_version": 2,
  "name": "MUTUAL BERSERK and 1/8+0 Beta",
  "description": "Mutual berserk and 1/8+0",
  "version": "0.0.0.1",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "web_accessible_resources": [
    "code.js"
  ],
  "permissions": [
    "webRequest",
    "webRequestBlocking",
    "https://lichess.org/"
  ],
  "content_scripts": [
    {
      "matches": [
        "http://lichess.org/*",
        "https://lichess.org/*",
        "https://lichess.dev/*"
      ],
      "js": [
        "./jquery-3.4.1.slim.min.js",
        "./start.js"
      ],
      "css": [
        "style.css"
      ]
    }
  ]
}