npm install @mynaui/icons-react

import { Heading4Solid } from "@mynaui/icons-react";

const App = () => {
  return <Heading4Solid />;
};

<svg width="24" height="24" fill="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg">
  <path d='M3.75 3.75a.75.75 0 0 1 .75.75v6.75h8V4.5a.75.75 0 0 1 1.5 0v15a.75.75 0 0 1-1.5 0v-6.75h-8v6.75a.75.75 0 0 1-1.5 0v-15a.75.75 0 0 1 .75-.75m16.066 5.913a.75.75 0 0 0-1.465-.326c-.173.78-.423 1.534-.71 2.238l-2.477 4.332a.75.75 0 0 0 .586 1.218h3V19.5a.75.75 0 0 0 1.5 0v-2.375h.5a.75.75 0 0 0 0-1.5h-.5V14.5a.75.75 0 0 0-1.5 0v1.125h-1.554c.172-.265.36-.568.556-.903.75-1.287 1.624-3.08 2.064-5.06'/>
</svg>

<img loading="lazy" decoding="async" src="https://unpkg.com/@mynaui/icons/icons-solid/heading-4.svg" />

npm install @mynaui/icons

<svg width="24" height="24" fill="currentColor" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><use xlink:href="/path/to/mynaui-solid.symbol.svg#mynaui-heading-4"></use>
</svg>