src/vs/workbench/contrib/preferences/browser/settingsTree.ts/SettingTextRenderer/renderValue
class SettingTextRenderer:	protected renderValue(dataElement: SettingsTreeSettingElement, template: ISettingTextItemTemplate, onChange: (value: string) => void): void {
		template.onChange = undefined;
		template.inputBox.value = dataElement.value;
		template.onChange = value => {
			if (!renderValidations(dataElement, template, false)) {
				onChange(value);
			}
		};

		renderValidations(dataElement, template, true);
	}