@spectrum-web-components/icons-ui/icons/sp-icon-checkmark300.d.ts

Deliver [Spectrum UI Icons](https://spectrum.adobe.com/page/icons/) as either:

import { IconCheckmark300 } from '../src/elements/IconCheckmark300.js';
declare global {
    interface HTMLElementTagNameMap {
        'sp-icon-checkmark300': IconCheckmark300;
    }
}