inabox/inabox.wpf/ProgressWindow/ProgressForm.xaml

<wpf:ThemableWindow x:Class="InABox.WPF.ProgressForm"
        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:wpf="clr-namespace:InABox.Wpf"
        mc:Ignorable="d"
        Title="ProgressForm"
        WindowStartupLocation="CenterScreen"
        WindowStyle="None"
        BorderThickness="0"
        BorderBrush="Transparent"
        AllowsTransparency="True"
        Background="Transparent"
        SizeToContent="WidthAndHeight"
        MouseDown="Window_MouseDown"
        MaxWidth="550" MaxHeight="550">
    <Border CornerRadius="20" BorderBrush="Gray" BorderThickness="0.75" Padding="50,20,50,10" Background="White">
        <Grid Margin="10">
            <Grid.RowDefinitions>
                <RowDefinition Height="*" />
                <RowDefinition Height="Auto" />
            </Grid.RowDefinitions>
            <Border x:Name="Image" CornerRadius="10" BorderBrush="Transparent" />

            <Label
                Grid.Row="1"
                FontSize="18"
                FontStyle="Oblique"
                x:Name="Progress"
                Content="Please wait.."
                Margin="10,10,10,0"
                HorizontalContentAlignment="Center"
                VerticalContentAlignment="Center"
                Background="Transparent" />
        </Grid>
    </Border>
</wpf:ThemableWindow>