reactive/Rx.NET/Source/tests/Tests.System.Reactive.Uwp.DeviceRunner/App.xaml

<Application
    x:Class="Tests.Reactive.Uwp.DeviceRunner.App"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    RequestedTheme="Light">
</Application>