Worked on the WebPlatformForEmbedded/WPEWebKit repository to enhance stability and reliability for Windows embedded deployments by addressing a critical bug in fractional-DPI scaling. Focused on graphics rendering and assertion handling in C++, the developer resolved an issue in BackingStoreSkia where update rectangles were incorrectly sized under non-integer DPI, leading to assertion failures and potential crashes. The solution involved using expandedIntSize to ensure accurate bitmap sizing, which improved reliability across varying DPI scales. The fix was backported from upstream WebKit, demonstrating careful integration and adherence to release workflows. No new features were added, with efforts concentrated on robust bug fixing.