[1.21.0](https://github.com/cdklabs/cdk-monitoring-constructs/compare/v1.20.0...v1.21.0) (2022-08-23)
Features
* **custom:** add graphWidgetLegend property to CustomMetricGroup ([226](https://github.com/cdklabs/cdk-monitoring-constructs/issues/226)) ([060ffb3](https://github.com/cdklabs/cdk-monitoring-constructs/commit/060ffb34a54ef2e0a66412d38a53fccbc4919665)), closes [#225](https://github.com/cdklabs/cdk-monitoring-constructs/issues/225)