@salesforce/design-system-react/components/icon/__examples__/external-path.jsx

Salesforce Lightning Design System for React

import React from 'react';
import createReactClass from 'create-react-class';
import Icon from '~/components/icon'; // `~` is replaced with design-system-react at runtime
import IconSettings from '~/components/icon-settings';

const Example = createReactClass({
	displayName: 'IconExample',

	render() {
		return (
			<IconSettings iconPath="/assets/icons">
				<Icon
					assistiveText={{ label: 'We got news!' }}
					inverse
					path="/assets/icons/utility-sprite/svg/symbols.svg#announcement"
					size="medium"
				/>
			</IconSettings>
		);
	},
});

export default Example; // export is replaced with `ReactDOM.render(<Example />, mountNode);` at runtime