SearchProgressWindow.xaml

<Window x:Class="Elite_Dangerous_Addon_Launcher_V2.SearchProgressWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:local="clr-namespace:Elite_Dangerous_Addon_Launcher_V2"
        Title="Searching for Elite Dangerous"
        Height="150"
        Width="400"
        xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
        TextElement.Foreground="{DynamicResource MaterialDesign.Brush.Foreground}"
        Background="{DynamicResource MaterialDesign.Brush.Background}"
        TextElement.FontWeight="Regular"
        TextElement.FontSize="12"
        FontFamily="{materialDesign:MaterialDesignFont}"

        TextOptions.TextFormattingMode="Ideal" 
        TextOptions.TextRenderingMode="Auto"        
   >

    <Grid>
        <TextBlock Name="searchStatusTextBlock"
               Text="Searching for Elite Dangerous..."
               HorizontalAlignment="Center"
               VerticalAlignment="Top"
               Margin="10" />

        <ProgressBar IsIndeterminate="True"
                 Margin="20" />
    </Grid>
</Window>