Cuenta.xaml

<ui:UiPage xmlns:ui="http://schemas.lepo.co/wpfui/2022/xaml" x:Class="OCM_Installer_V2.Cuenta"
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
      xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
      xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
      mc:Ignorable="d" 
      Title="Cuenta" HorizontalAlignment="Center" VerticalAlignment="Center"
      Tag="Cuenta" WindowTitle="Cuenta">

    <Grid Width="854" Height="425" HorizontalAlignment="Center" VerticalAlignment="Center">
        <ui:Button x:Name="LoginButton" Content="Iniciar sesión" Margin="0,222,0,0" VerticalAlignment="Top" Height="90" Width="370" FontWeight="UltraLight" FontSize="37" FontFamily="Impact" FontStyle="Normal" Click="LoginButton_Click" Icon="Link48" IconFilled="True" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" HorizontalAlignment="Center">
            <ui:Button.IconForeground>
                <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                    <LinearGradientBrush.RelativeTransform>
                        <TransformGroup>
                            <ScaleTransform CenterY="0.5" CenterX="0.5"/>
                            <SkewTransform CenterX="0.5" CenterY="0.5"/>
                            <RotateTransform Angle="90" CenterX="0.5" CenterY="0.5"/>
                            <TranslateTransform/>
                        </TransformGroup>
                    </LinearGradientBrush.RelativeTransform>
                    <GradientStop Color="Magenta"/>
                    <GradientStop Color="Cyan" Offset="1"/>
                </LinearGradientBrush>
            </ui:Button.IconForeground>
            <ui:Button.Foreground>
                <LinearGradientBrush>
                    <GradientStop Color="Magenta" Offset="0"/>
                    <GradientStop Color="Magenta"/>
                    <GradientStop Color="#FF04FAFF" Offset="1"/>
                </LinearGradientBrush>
            </ui:Button.Foreground>
            <ui:Button.Effect>
                <DropShadowEffect/>
            </ui:Button.Effect>
            <ui:Button.Background>
                <ImageBrush ImageSource="images/btnbkg.png" Stretch="UniformToFill"/>
            </ui:Button.Background>
        </ui:Button>
        <ui:Button x:Name="LogoutButton" Content="Cerrar sesión" Margin="0,90,0,0" VerticalAlignment="Top" Height="90" Width="370" FontWeight="UltraLight" FontSize="37" FontFamily="Impact" FontStyle="Normal" Click="LogoutButton_Click" Icon="Link48" IconFilled="True" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" HorizontalAlignment="Center">
            <ui:Button.IconForeground>
                <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                    <LinearGradientBrush.RelativeTransform>
                        <TransformGroup>
                            <ScaleTransform CenterY="0.5" CenterX="0.5"/>
                            <SkewTransform CenterX="0.5" CenterY="0.5"/>
                            <RotateTransform Angle="90" CenterX="0.5" CenterY="0.5"/>
                            <TranslateTransform/>
                        </TransformGroup>
                    </LinearGradientBrush.RelativeTransform>
                    <GradientStop Color="Cyan"/>
                    <GradientStop Color="Magenta" Offset="1"/>
                </LinearGradientBrush>
            </ui:Button.IconForeground>
            <ui:Button.Foreground>
                <LinearGradientBrush>
                    <GradientStop Color="Magenta" Offset="1"/>
                    <GradientStop Color="Magenta" Offset="1"/>
                    <GradientStop Color="#FF04FAFF" Offset="0"/>
                </LinearGradientBrush>
            </ui:Button.Foreground>
            <ui:Button.Effect>
                <DropShadowEffect/>
            </ui:Button.Effect>
            <ui:Button.Background>
                <ImageBrush ImageSource="images/btnbkg.png" Stretch="UniformToFill"/>
            </ui:Button.Background>
        </ui:Button>
        <ui:CardExpander x:Name="NoPremiumCard" HorizontalAlignment="Center" Header="¿No tienes Minecraft comprado o no quieres iniciar sesión con tu cuenta de Microsoft?" Background="#FF272727" UseLayoutRounding="True" Margin="0,13,0,0" VerticalAlignment="Top" Width="591">
            <ui:CardExpander.Effect>
                <DropShadowEffect/>
            </ui:CardExpander.Effect>
            <Grid HorizontalAlignment="Center" VerticalAlignment="Center" Height="86" Width="618">
                <ui:TextBox x:Name="CustomUsername" HorizontalAlignment="Center" TextWrapping="Wrap" PlaceholderEnabled="True" PlaceholderText="Nombre de usuario" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Height="33" Width="422" TextChanged="CustomUsername_TextChanged" Cursor="IBeam" Margin="0,53,0,0" VerticalAlignment="Top"/>
                <Label x:Name="NoPremiumInfo" Content="Escribe el nombre de usuario que quieres tener en el juego." HorizontalAlignment="Center" Margin="0,1,0,0" VerticalAlignment="Top" Height="24" Width="395" VerticalContentAlignment="Center" HorizontalContentAlignment="Center"/>
                <Label x:Name="NoPremiumInfo2" Content="Puedes usar esto tengas o no Minecraft comprado." HorizontalAlignment="Center" Margin="0,25,0,0" VerticalAlignment="Top" Height="23" Width="420" VerticalContentAlignment="Center" HorizontalContentAlignment="Center"/>
            </Grid>
        </ui:CardExpander>
    </Grid>
</ui:UiPage>