src/vs/base/browser/ui/toggle/toggle.ts/Checkbox/applyStyles
class Checkbox:	protected applyStyles(): void {
		this.domNode.style.color = this.styles.checkboxForeground || '';
		this.domNode.style.backgroundColor = this.styles.checkboxBackground || '';
		this.domNode.style.borderColor = this.styles.checkboxBorder || '';
	}