MainWindow.xaml

<Window x:Class="ToastDesk.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="ToastDesk"
        Height="620"
        Width="980"
        MinHeight="560"
        MinWidth="860"
        FontFamily="Segoe UI Variable, Segoe UI"
        Background="{StaticResource AppBackgroundBrush}">
    <Grid Margin="28">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>

        <DockPanel Grid.Row="0" LastChildFill="True">
            <StackPanel DockPanel.Dock="Right"
                        Orientation="Horizontal"
                        HorizontalAlignment="Right">
                <Button x:Name="TestNotificationButton"
                        Style="{StaticResource PrimaryButtonStyle}"
                        MinWidth="164"
                        Margin="0,0,8,0"
                        Click="TestNotificationButton_Click">
                    Send Windows Toast
                </Button>
                <Button x:Name="EnableWindowsListenerButton"
                        Style="{StaticResource SecondaryButtonStyle}"
                        MinWidth="188"
                        Click="EnableWindowsListenerButton_Click">
                    Retry Windows Capture
                </Button>
            </StackPanel>

            <StackPanel>
                <TextBlock Text="ToastDesk"
                           FontSize="30"
                           FontWeight="SemiBold"
                           Foreground="{StaticResource TextBrush}" />
                <TextBlock Text="Persistent desktop toast layer with Windows Notification Center capture."
                           Margin="0,6,0,0"
                           FontSize="14"
                           Foreground="{StaticResource TextMutedBrush}" />
            </StackPanel>
        </DockPanel>

        <Border Grid.Row="1"
                Margin="0,22,0,16"
                Padding="18"
                Background="{StaticResource PanelBrush}"
                BorderBrush="{StaticResource BorderBrushSoft}"
                BorderThickness="1"
                CornerRadius="10">
            <Border.Effect>
                <StaticResource ResourceKey="CardShadow" />
            </Border.Effect>
            <Grid>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*" />
                    <ColumnDefinition Width="Auto" />
                </Grid.ColumnDefinitions>

                <StackPanel>
                    <TextBlock Text="Windows Capture"
                               FontSize="13"
                               FontWeight="SemiBold"
                               Foreground="{StaticResource TextBrush}" />
                    <TextBlock x:Name="ListenerStatusText"
                               Margin="0,6,0,0"
                               Text="Starting Windows notification capture..."
                               Foreground="{StaticResource TextMutedBrush}"
                               TextWrapping="Wrap" />
                </StackPanel>

                <Button Grid.Column="1"
                        Style="{StaticResource SecondaryButtonStyle}"
                        MinWidth="128"
                        Margin="20,0,0,0"
                        Click="ClearNotificationsButton_Click">
                    Clear List
                </Button>
            </Grid>
        </Border>

        <TabControl Grid.Row="2">
            <TabItem Header="Activity">
                <Border Background="{StaticResource PanelBrush}"
                        BorderBrush="{StaticResource BorderBrushSoft}"
                        BorderThickness="1"
                        CornerRadius="10">
                    <Border.Effect>
                        <StaticResource ResourceKey="CardShadow" />
                    </Border.Effect>
                    <Grid>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto" />
                            <RowDefinition Height="*" />
                        </Grid.RowDefinitions>

                        <Grid Margin="18,16,18,12">
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="2*" />
                                <ColumnDefinition Width="3*" />
                                <ColumnDefinition Width="Auto" />
                                <ColumnDefinition Width="Auto" />
                            </Grid.ColumnDefinitions>
                            <TextBlock Text="Title" FontSize="12" FontWeight="SemiBold" Foreground="{StaticResource TextMutedBrush}" />
                            <TextBlock Grid.Column="1" Text="Message" FontSize="12" FontWeight="SemiBold" Foreground="{StaticResource TextMutedBrush}" />
                    <TextBlock Grid.Column="2" Text="Source" FontSize="12" FontWeight="SemiBold" Foreground="{StaticResource TextMutedBrush}" Margin="16,0" />
                            <TextBlock Grid.Column="3" Text="Time" FontSize="12" FontWeight="SemiBold" Foreground="{StaticResource TextMutedBrush}" />
                        </Grid>

                        <ListBox Grid.Row="1"
                                 ItemsSource="{Binding NotificationStore.Notifications}"
                                 BorderThickness="0"
                                 Background="Transparent"
                                 ScrollViewer.HorizontalScrollBarVisibility="Disabled">
                            <ListBox.ItemTemplate>
                                <DataTemplate>
                                    <Border Padding="16,12"
                                            Background="{StaticResource PanelSubtleBrush}"
                                            BorderBrush="{StaticResource BorderBrushSoft}"
                                            BorderThickness="0,1,0,0">
                                        <Grid>
                                            <Grid.ColumnDefinitions>
                                                <ColumnDefinition Width="2*" />
                                                <ColumnDefinition Width="3*" />
                                                <ColumnDefinition Width="Auto" />
                                                <ColumnDefinition Width="Auto" />
                                            </Grid.ColumnDefinitions>

                                            <TextBlock Text="{Binding Title}"
                                                       FontWeight="SemiBold"
                                                       Foreground="{StaticResource TextBrush}"
                                                       TextWrapping="Wrap" />
                                            <TextBlock Grid.Column="1"
                                                       Text="{Binding Message}"
                                                       Foreground="{StaticResource TextMutedBrush}"
                                                       TextWrapping="Wrap"
                                                       Margin="16,0" />
                                            <TextBlock Grid.Column="2"
                                                       Text="{Binding SourceDisplayName}"
                                                       Foreground="{StaticResource TextMutedBrush}"
                                                       Margin="16,0" />
                                            <TextBlock Grid.Column="3"
                                                       Text="{Binding CreatedAtLocalText}"
                                                       Foreground="{StaticResource TextMutedBrush}" />
                                        </Grid>
                                    </Border>
                                </DataTemplate>
                            </ListBox.ItemTemplate>
                        </ListBox>
                    </Grid>
                </Border>
            </TabItem>

            <TabItem Header="Settings">
                <Border Background="{StaticResource PanelBrush}"
                        BorderBrush="{StaticResource BorderBrushSoft}"
                        BorderThickness="1"
                        CornerRadius="10"
                        Padding="22">
                    <Border.Effect>
                        <StaticResource ResourceKey="CardShadow" />
                    </Border.Effect>
                    <ScrollViewer VerticalScrollBarVisibility="Auto">
                        <StackPanel MaxWidth="680" HorizontalAlignment="Left">
                            <TextBlock Text="Startup"
                                       FontSize="18"
                                       FontWeight="SemiBold"
                                       Foreground="{StaticResource TextBrush}" />
                            <TextBlock Text="Control how ToastDesk behaves when Windows or the app starts."
                                       Margin="0,6,0,16"
                                       Foreground="{StaticResource TextMutedBrush}"
                                       TextWrapping="Wrap" />
                            <CheckBox Content="Start ToastDesk when I sign in to Windows"
                                      IsChecked="{Binding Settings.StartWithWindows, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
                            <CheckBox Content="Start minimized to the tray"
                                      IsChecked="{Binding Settings.StartMinimized, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />

                            <Separator Margin="0,10,0,20" />

                            <TextBlock Text="Notifications"
                                       FontSize="18"
                                       FontWeight="SemiBold"
                                       Foreground="{StaticResource TextBrush}" />
                            <TextBlock Text="Capture Windows notifications into the activity list and control whether ToastDesk shows its own overlay cards."
                                       Margin="0,6,0,16"
                                       Foreground="{StaticResource TextMutedBrush}"
                                       TextWrapping="Wrap" />
                            <CheckBox Content="Enable Windows notification capture"
                                      IsChecked="{Binding Settings.EnableWindowsCapture, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
                            <CheckBox Content="Show ToastDesk overlay cards"
                                      IsChecked="{Binding Settings.EnableToastOverlay, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
                            <CheckBox Content="Do not disturb: keep capturing but hide overlay cards"
                                      IsChecked="{Binding Settings.DoNotDisturb, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />

                            <Separator Margin="0,10,0,20" />

                            <TextBlock Text="Sound"
                                       FontSize="18"
                                       FontWeight="SemiBold"
                                       Foreground="{StaticResource TextBrush}" />
                            <TextBlock Text="Play a short sound when ToastDesk receives a notification. Presets are bundled notification tones, and custom WAV/MP3/WMA files are supported."
                                       Margin="0,6,0,16"
                                       Foreground="{StaticResource TextMutedBrush}"
                                       TextWrapping="Wrap" />
                            <CheckBox Content="Enable notification sound"
                                      IsChecked="{Binding Settings.EnableNotificationSound, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />

                            <Grid Margin="0,0,0,12">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="180" />
                                    <ColumnDefinition Width="220" />
                                    <ColumnDefinition Width="Auto" />
                                    <ColumnDefinition Width="Auto" />
                                </Grid.ColumnDefinitions>
                                <TextBlock Text="Sound preset"
                                           VerticalAlignment="Center"
                                           Foreground="{StaticResource TextBrush}" />
                                <ComboBox x:Name="SoundPresetComboBox"
                                          Grid.Column="1"
                                          Width="200"
                                          ItemsSource="{Binding SoundPresets}"
                                          DisplayMemberPath="Name"
                                          SelectedValuePath="Id"
                                          SelectedValue="{Binding Settings.SoundPresetId, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                                          SelectionChanged="SoundPresetComboBox_SelectionChanged" />
                                <Button Grid.Column="2"
                                        Style="{StaticResource SecondaryButtonStyle}"
                                        MinWidth="120"
                                        Margin="8,0,0,0"
                                        Click="ChooseCustomSoundButton_Click">
                                    Choose File
                                </Button>
                                <Button Grid.Column="3"
                                        Style="{StaticResource PrimaryButtonStyle}"
                                        MinWidth="100"
                                        Margin="8,0,0,0"
                                        Click="PreviewSoundButton_Click">
                                    Preview
                                </Button>
                            </Grid>

                            <Grid>
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="180" />
                                    <ColumnDefinition Width="260" />
                                    <ColumnDefinition Width="Auto" />
                                </Grid.ColumnDefinitions>
                                <TextBlock Text="Volume"
                                           VerticalAlignment="Center"
                                           Foreground="{StaticResource TextBrush}" />
                                <Slider Grid.Column="1"
                                        Minimum="0"
                                        Maximum="100"
                                        TickFrequency="10"
                                        IsSnapToTickEnabled="False"
                                        Value="{Binding Settings.NotificationSoundVolume, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" />
                                <TextBlock Grid.Column="2"
                                           Margin="10,0,0,0"
                                           VerticalAlignment="Center"
                                           Foreground="{StaticResource TextMutedBrush}"
                                           Text="{Binding Settings.NotificationSoundVolume, StringFormat={}{0}%}" />
                            </Grid>

                            <TextBlock Text="{Binding Settings.CustomSoundPath, TargetNullValue=No custom sound selected.}"
                                       Margin="180,8,0,0"
                                       Foreground="{StaticResource TextMutedBrush}"
                                       TextWrapping="Wrap" />
                        </StackPanel>
                    </ScrollViewer>
                </Border>
            </TabItem>
        </TabControl>
    </Grid>
</Window>