src/vs/workbench/contrib/customEditor/browser/customEditorInput.ts/CustomEditorInput/mediumTitle
class CustomEditorInput:	private get mediumTitle(): string {
		if (typeof this._mediumTitle !== 'string') {
			this._mediumTitle = this.labelService.getUriLabel(this.resource, { relative: true });
		}

		return this._mediumTitle;
	}