   linear-gradient(90deg, var(--line-color-1) 1.5px, transparent 1.5px),
      linear-gradient(var(--line-color-2) 1px, transparent 1px),
      linear-gradient(90deg, var(--line-color-2) 1px, transparent 1px);
  background-position: -1.5px -1.5px, -1.5px -1.5px, -1px -1px, -1px -1px;
  background-size: 100px 100px, 100px 100px, 10px 10px, 10px 10px;  
}
    </style>
  </head>
  <body>
    <canvas></canvas>
  </body>
  <script type="module">
import GUI from '../3rdparty/muigui-0.x.module.js';

function creat