App.xaml

<Application x:Class="LC_Points.App"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:local="using:LC_Points.ViewModel"
             RequestedTheme="Light">

    <Application.Resources>
        <local:MainViewModel x:Key="Locator" />
    </Application.Resources>

</Application>