During May 2025, Lin Jiang focused on improving the robustness of data visualization workflows in the satijalab/seurat repository. Leveraging expertise in R programming, bioinformatics, and ggplot2, Lin addressed a bug in the VlnPlot function by refining default assay handling, which prevented errors and ensured consistent plot behavior across diverse datasets. Additionally, Lin enhanced ggplot rendering by replacing deprecated guide suppression methods, opting for 'none' instead of 'guides=FALSE' to improve reliability and suppress unwanted color and fill guides. These targeted changes, delivered through traceable commits, contributed to more reproducible and user-friendly plotting workflows within the Seurat codebase.