Grant McDermott enhanced the easystats/modelbased repository by delivering a targeted upgrade to TinyPlot visualizations, focusing on greater customization and reliability. He introduced explicit arguments for plot types and dodging layers, allowing users to fine-tune their visual outputs in R. Grant also updated dependencies to ensure compatibility with TinyPlot version 0.6.0 and improved documentation to clarify the plotting API, smoothing the onboarding process for new users. His work emphasized robust data visualization and statistical modeling practices, addressing edge cases such as legend handling. Collaborative development was prioritized through clear commit attribution and a transparent review workflow throughout the project.