src/vs/platform/userDataSync/common/settingsSync.ts/SettingsSynchroniser/resolvePreviewContent
class SettingsSynchroniser:	protected override async resolvePreviewContent(resource: URI): Promise<string | null> {
		let content = await super.resolvePreviewContent(resource);
		if (content) {
			const formatUtils = await this.getFormattingOptions();
			// remove ignored settings from the preview content
			const ignoredSettings = await this.getIgnoredSettings();
			content = updateIgnoredSettings(content, '{}', ignoredSettings, formatUtils);
		}
		return content;
	}