TheoCvg 

Contract of EasyBI, a self-service BI library: semantic model metadata, analytic queries, result sets, visual and report definitions. No dependencies on .NET 8.

Self-service BI for WPF: drag-and-drop report designer, visual view, filter bar with cross-filtering, built-in KPI and table renderers, pluggable chart connectors.

EasyBI query engine: semantic models over IQueryable (EF Core, LINQ to objects), expression-tree query translation, pivot, cross-filtering and JSON reports.

OxyPlot connector for EasyBI.Wpf: bar, line and pie charts.

LiveCharts2 connector for EasyBI.Wpf: bar, line and pie charts.

Material Design in XAML theme for EasyBI.Wpf: EasyBI's colors follow the Material Design theme, light or dark, and its controls take Material Design's styles.

WPF UI (lepoco) theme for EasyBI.Wpf: EasyBI's colors follow the WPF UI theme, light or dark, and its controls take WPF UI's styles.