EndlessHostRoles/CTA/CustomTeamAssigner/MainWindow.xaml

<Window x:Class="CustomTeamAssigner.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"
        mc:Ignorable="d"
        Title="Custom Team Assigner" Height="720" Width="1280" FontSize="20" ResizeMode="CanMinimize" WindowStyle="None">

    <!--Create a default style for the buttons (modern style)-->
    <Window.Resources>
        <Style TargetType="Button">
            <Setter Property="Background" Value="LightGray"/>
            <Setter Property="Foreground" Value="Black"/>
            <Setter Property="FontSize" Value="30"/>
            <Setter Property="FontFamily" Value="Arial"/>
            <Setter Property="FontWeight" Value="Bold"/>
            <Setter Property="BorderThickness" Value="0"/>
            <Setter Property="Padding" Value="10"/>
            <Setter Property="Margin" Value="10"/>
            <Setter Property="Width" Value="440"/>
            <Setter Property="Height" Value="100"/>
            <Setter Property="HorizontalAlignment" Value="Center"/>
            <Setter Property="VerticalAlignment" Value="Center"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="Button">
                        <Border Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="10">
                            <ContentPresenter HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                        </Border>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
            <Style.Triggers>
                <Trigger Property="IsMouseOver" Value="True">
                    <Setter Property="Background" Value="Gray"/>
                </Trigger>
                <Trigger Property="IsPressed" Value="True">
                    <Setter Property="Background" Value="DarkGray"/>
                </Trigger>
            </Style.Triggers>
        </Style>
    </Window.Resources>

    <Grid Name="MainGrid">
        <Grid.Background>
            <ImageBrush ImageSource="bg.jpg"/>
        </Grid.Background>
        <Grid.RowDefinitions>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
            <RowDefinition/>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition/>
            <ColumnDefinition Width="2*"/>
            <ColumnDefinition/>
        </Grid.ColumnDefinitions>

        <Frame Grid.Row="0" Grid.Column="0" Grid.ColumnSpan="3" Grid.RowSpan="10" Name="Navigator" NavigationUIVisibility="Hidden"/>

        <Label Content="Custom Team Assigner" Grid.Column="0" Grid.Row="0" Grid.ColumnSpan="3" Grid.RowSpan="2" FontSize="70" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Foreground="LightGray" Name="Title"/>

        <Button Content="Create New Play-Set" Grid.Column="1" Grid.Row="3" Click="CreateNewPlaySet"/>
        <Button Content="Import Play-Set" Grid.Column="1" Grid.Row="5" Click="ImportPlaySet"/>

        <Button Content="Exit" Grid.Column="1" Grid.Row="8" Click="Exit"/>
    </Grid>
</Window>