MainWindow.xaml

<Window x:Class="CADHub.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:CADHub"
        mc:Ignorable="d"
        Title="" Height="500" Width="900" MinWidth="900" MinHeight="450">

    <!--Remove the titlebar icon-->
    <Window.Icon>
        <DrawingImage/>
    </Window.Icon>

    <!--<Frame x:Name="_mainFrame" Source="./Pages/MainApplication.xaml"/>-->
    <Frame Background="#121212" x:Name="_mainFrame" NavigationUIVisibility="Hidden"/>
</Window>