add basic look for theme change dialog
ADD
WalletWasabi.Fluent/Assets/Theme/wasabi_theme_change.png
WalletWasabi.Fluent/Assets/Theme/wasabi_theme_change.png
Binary files /dev/null and b/WalletWasabi.Fluent/Assets/Theme/wasabi_theme_change.png differ

MODIFY
WalletWasabi.Fluent/Views/Settings/ThemeChangeView.axaml
WalletWasabi.Fluent/Views/Settings/ThemeChangeView.axaml
x:DataType="settings:ThemeChangeViewModel"
x:CompileBindings="True"
x:Class="WalletWasabi.Fluent.Views.Settings.ThemeChangeView">
- <TextBlock Text="Wasabi changing theme"/>
+ <DockPanel VerticalAlignment="Center" Margin="40">
+ <TextBlock Text="Wasabi is changing theme..."
+ FontSize="20"
+ FontWeight="ExtraLight"
+ DockPanel.Dock="Bottom"
+ Margin="10 20 10 0"
+ TextAlignment="Center"
+ TextWrapping="Wrap"/>
+ <Viewbox MaxHeight="200">
+ <Image Source="avares://WalletWasabi.Fluent/Assets/Theme/wasabi_theme_change.png"/>
+ </Viewbox>
+ </DockPanel>
</UserControl>

add basic look for theme change dialog