Thomas Hu enhanced histogram visualizations in the FNLCR-DMAP/spac_datamine repository by implementing layer-aware titles that clearly indicate the data layer being plotted. Using Python and data visualization techniques, he centralized and standardized the logic for generating histogram titles, ensuring consistency and maintainability across the codebase. He also developed comprehensive tests to verify the correct display of these titles, supporting robust quality assurance and reducing potential confusion for analysts working with layered datasets. This work improved the interpretability of visual analytics, aligned with product goals for clearer user interfaces, and prepared the project for future layer-context analytical features.