src/vs/workbench/electron-sandbox/actions/windowActions.ts/BaseZoomAction/setConfiguredZoomLevel
class BaseZoomAction:	protected async setConfiguredZoomLevel(accessor: ServicesAccessor, level: number): Promise<void> {
		const configurationService = accessor.get(IConfigurationService);

		level = Math.round(level); // when reaching smallest zoom, prevent fractional zoom levels

		if (level > BaseZoomAction.MAX_ZOOM_LEVEL || level < BaseZoomAction.MIN_ZOOM_LEVEL) {
			return; // https://github.com/microsoft/vscode/issues/48357
		}

		await configurationService.updateValue(BaseZoomAction.SETTING_KEY, level);

		applyZoom(level);
	}