Pi

import { RegularPi } from 'onebit-icon-react';

<RegularPi size={24} />

<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256" width="24" height="24" fill="none"><path d="M224,64H72a48,48,0,0,0-48,48" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="16"/><line x1="88" y1="64" x2="88" y2="200" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="16"/><path d="M224,172a28,28,0,0,1-56,0V64" fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="16"/></svg>

.icon-pi {
  width: 24px; height: 24px;
  background: currentColor;
  mask: url("https://icons.onebit.ng/icons/regular-pi.svg") center / contain no-repeat;
}