During July 2025, Cong Thinh focused on enhancing UI styling reliability for the palantir/blueprint repository. He addressed a specific issue with divider compact styling by correcting the relevant CSS selector, ensuring the compact class applied as intended. Working primarily with SCSS and CSS, he updated the styling rules to align with the design system and prevent future regressions. His changes were isolated and well-documented, including a detailed changelog entry for release traceability. Although the work centered on a single bug fix rather than new features, it contributed to smoother designer-developer collaboration and improved consistency across front-end components.