During August 2025, Bhpcv252 enhanced both the matplotlib and astropy repositories by delivering two targeted features focused on type safety and visualization control. In matplotlib, Bhpcv252 improved colormap type-checking by adding hardcoded definitions to the cm.pyi file and implemented runtime validation tests, leveraging Python’s type hinting and code analysis capabilities. For astropy, Bhpcv252 introduced explicit axis unit control for Matplotlib plots, allowing users to override default unit inference with direct axis unit assignment. These contributions emphasized robust testing and documentation, resulting in improved reliability, developer experience, and cross-project consistency in data visualization workflows using Astropy Units and Matplotlib Integration.