src/vs/workbench/contrib/welcomeWalkthrough/browser/walkThroughPart.ts/WalkThroughPart/expandMacros
class WalkThroughPart:	private expandMacros(input: string) {
		return input.replace(/kb\(([a-z.\d\-]+)\)/gi, (match: string, kb: string) => {
			const keybinding = this.keybindingService.lookupKeybinding(kb);
			const shortcut = keybinding ? keybinding.getLabel() || '' : UNBOUND_COMMAND;
			return `<span class="shortcut">${strings.escape(shortcut)}</span>`;
		});
	}