src/vs/workbench/contrib/preferences/browser/preferencesWidgets.ts/SettingsGroupTitleWidget/getIconSize
class SettingsGroupTitleWidget:	private getIconSize(minSize: number): number {
		const fontSize = this.editor.getOption(EditorOption.fontInfo).fontSize;
		return fontSize > 8 ? Math.max(fontSize, minSize) : 12;
	}