In May 2026, Nizheming enhanced data clarity in the pingcap/ticdc and pingcap/tiflash repositories by standardizing how Grafana dashboards render null values. Focusing on JSON configuration and data visualization, Nizheming implemented logic to display nulls as zero, preventing misinterpretation of missing data and ensuring consistent visuals across both projects. This approach involved updating JSON files and Grafana settings to unify null-value handling, directly addressing issues of data ambiguity for end users. By improving the reliability of dashboard insights, Nizheming’s work enabled stakeholders to make faster, more accurate decisions based on clear, trustworthy data representations in Grafana.