replace with WasabiWindow.
MODIFY
WalletWasabi.Gui/CrashReport/Views/CrashReportWindow.xaml
WalletWasabi.Gui/CrashReport/Views/CrashReportWindow.xaml
-<cont:MetroWindow xmlns="https://github.com/avaloniaui"
+<cont:WasabiWindow xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:cont="clr-namespace:AvalonStudio.Shell.Controls;assembly=AvalonStudio.Shell"
xmlns:i="clr-namespace:Avalonia.Xaml.Interactivity;assembly=Avalonia.Xaml.Interactivity"
<TextBox DockPanel.Dock="Top" Text="{Binding Message}" MaxHeight="50" IsReadOnly="True" TextWrapping="Wrap" AcceptsReturn="True" FontWeight="Bold" FontSize="18" Margin="0,0,0,25" BorderThickness="0" />
<TextBox Text="{Binding Details}" IsReadOnly="True" Margin="0 8" TextWrapping="Wrap" AcceptsReturn="True" BorderThickness="0" />
</DockPanel>
-</cont:MetroWindow>
+</cont:WasabiWindow>

MODIFY
WalletWasabi.Gui/CrashReport/Views/CrashReportWindow.xaml.cs
WalletWasabi.Gui/CrashReport/Views/CrashReportWindow.xaml.cs
@@ -7,7 +7,7 @@ using Splat;
namespace WalletWasabi.Gui.CrashReport.Views
{
- public class CrashReportWindow : MetroWindow
+ public class CrashReportWindow : WasabiWindow
{
public CrashReportWindow()
{

replace with WasabiWindow.