kozw 

A set of controls and styles converting your WPF application into a great looking Modern UI app.

A XAML preprocessor adding conditional compilation support to XAML files

XAML Spy libraries for Android, iOS and Windows apps. Use this package if you need to connect to XAML Spy manually.

Enables XAML Spy query and automation services for Android, iOS and Windows apps.

Controls, templates, and tools for building Universal Windows Platform apps with XAML