src/vs/platform/actionWidget/browser/actionList.ts/ActionItemRenderer/renderTemplate
class ActionItemRenderer:	renderTemplate(container: HTMLElement): IActionMenuTemplateData {
		container.classList.add(this.templateId);

		const icon = document.createElement('div');
		icon.className = 'icon';
		container.append(icon);

		const text = document.createElement('span');
		text.className = 'title';
		container.append(text);

		const keybinding = new KeybindingLabel(container, OS);

		return { container, icon, text, keybinding };
	}