During August 2025, this developer delivered two feature enhancements across the matplotlib and astropy repositories, focusing on Python-based data visualization and code analysis. In matplotlib, they improved type checker support by hardcoding colormap attributes and validating stub definitions against runtime mappings, strengthening type hinting and reducing misconfiguration risks. For astropy, they enabled explicit axis units control in Matplotlib plots, allowing users to override default unit inference for greater flexibility. Their work emphasized robust testing and documentation, ensuring early regression detection and consistent API usability. These contributions enhanced reliability and maintainability, aligning with priorities around developer experience and cross-project consistency.