Worked on enhancing UI consistency within the dotnet/wpf repository by refining the visual alignment of ListViewItem indicators across multiple Fluent themes. Focused on XAML styling and WPF, the developer reduced the ActiveRectangle height from 18 to 16 units, ensuring uniform appearance in Fluent.Dark, Fluent.HC, Fluent.Light, and the base Fluent theme. This adjustment addressed theme-specific rendering drift and improved cross-theme visual coherence. The work demonstrated careful attention to detail in XAML and version control, with all changes validated for visual accuracy. No bugs were reported during this period, and the groundwork was laid for future theming improvements in WPF applications.