src/vs/workbench/services/preferences/browser/preferencesService.ts/PreferencesService/createSplitJsonEditorInput
class PreferencesService:	public createSplitJsonEditorInput(configurationTarget: ConfigurationTarget, resource: URI): EditorInput {
		const editableSettingsEditorInput = this.textEditorService.createTextEditor({ resource });
		const defaultPreferencesEditorInput = this.instantiationService.createInstance(TextResourceEditorInput, this.getDefaultSettingsResource(configurationTarget), undefined, undefined, undefined, undefined);
		return this.instantiationService.createInstance(SideBySideEditorInput, editableSettingsEditorInput.getName(), undefined, defaultPreferencesEditorInput, editableSettingsEditorInput);
	}