creator feedback batch: 9 fixes from initial review

1. About box bg → #0A0C1A (matches icon bg)
2. Elements panel collapses when no element selected / scene changes
3. OpacityChip moved from preview overlay into Elements panel
4. Color picker fix: cast to SceneElement not Source (WebcamSceneConfig was silently blocked)
5. Red left accent bar on selected items in Scene/Source lists
6. ✓ character replaced with Path checkmark icon in Elements panel
7. Removed ToolTip='Applied' from green check buttons
8. Created bugs.md with first entry (iTunes audio on mic meter)
9. Full logo in README + About box uses ytLlive-logo.png

Helpers/NullToVisibilityConverter.cs

@@ -0,0 +1,14 @@
+using System.Globalization;
+using System.Windows;
+using System.Windows.Data;
+
+namespace ytLive.Helpers;
+
+public class NullToVisibilityConverter : IValueConverter
+{
+    public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
+        => value == null ? Visibility.Visible : Visibility.Collapsed;
+
+    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
+        => value is Visibility.Collapsed;
+}

MainWindow.xaml

@@ -33,6 +33,8 @@
                                                   xmlns:Helpers="clr-namespace:ytLive.Helpers"/>
         <Helpers:NotNullToVisibilityConverter x:Key="NotNullToVis"
                                               xmlns:Helpers="clr-namespace:ytLive.Helpers"/>
+        <Helpers:NullToVisibilityConverter x:Key="NullToVis"
+                                           xmlns:Helpers="clr-namespace:ytLive.Helpers"/>
         <Helpers:HiddenBoolToVisibilityConverter x:Key="HiddenBoolToVis"
                                                  xmlns:Helpers="clr-namespace:ytLive.Helpers"/>
         <Helpers:EnumToBoolConverter x:Key="EnumToBool"
@@ -356,13 +358,40 @@
                                HorizontalAlignment="Center" VerticalAlignment="Center"
                                Visibility="{Binding ShowSourcesEmptyHint, Converter={StaticResource BoolToVis}}"/>
 
-                    <!-- ELEMENTS panel: per-element config beneath Sources -->
+                    <!-- ELEMENTS panel: per-element config beneath Sources.
-                    <Rectangle Grid.Row="5" Height="1" Fill="#2c3a5c" Margin="0,10,0,2"/>
+                         Collapses entirely when no element is selected. -->
-                    <StackPanel Grid.Row="6" Orientation="Horizontal" Margin="0,8,0,0">
+                    <Rectangle Grid.Row="5" Height="1" Fill="#2c3a5c" Margin="0,10,0,2"
+                               Visibility="{Binding SelectedElement, Converter={StaticResource NotNullToVis}}"/>
+                    <StackPanel Grid.Row="6" Orientation="Horizontal" Margin="0,8,0,0"
+                                Visibility="{Binding SelectedElement, Converter={StaticResource NotNullToVis}}">
                         <TextBlock Text="ELEMENTS" Style="{StaticResource SectionHeader}" VerticalAlignment="Center"/>
                     </StackPanel>
-                    <ScrollViewer Grid.Row="7" VerticalScrollBarVisibility="Auto" Background="Transparent">
+                    <ScrollViewer Grid.Row="7" VerticalScrollBarVisibility="Auto" Background="Transparent"
+                                  Visibility="{Binding SelectedElement, Converter={StaticResource NotNullToVis}}">
                         <StackPanel x:Name="ElementsPanel" Margin="0,4,0,0">
+                            <!-- Opacity + mirror/shape (draggable elements: image, webcam) -->
+                            <StackPanel Visibility="{Binding SelectedElement.IsDraggable, Converter={StaticResource BoolToVis}}" Margin="0,0,0,8">
+                                <TextBlock Text="Opacity" Foreground="#a0a0b0" FontSize="11" Margin="0,0,0,2"/>
+                                <DockPanel Margin="0,0,0,6">
+                                    <TextBlock x:Name="OpacityValueText" Text="100%" Foreground="#a0a0b0" FontSize="11"
+                                               DockPanel.Dock="Right" VerticalAlignment="Center" Margin="8,0,0,0" Width="32"/>
+                                    <Slider x:Name="OpacitySlider" Width="120" Minimum="0" Maximum="1"
+                                            Value="{Binding SelectedElement.Opacity, Mode=TwoWay}"
+                                            ValueChanged="OpacitySlider_ValueChanged" VerticalAlignment="Center"/>
+                                </DockPanel>
+                                <StackPanel Orientation="Horizontal" Margin="0,0,0,4"
+                                            Visibility="{Binding IsWebcamSelected, Converter={StaticResource BoolToVis}}">
+                                    <Button Content="{Binding SelectedElement.MirrorButtonText}"
+                                            Style="{StaticResource YtButtonSecondary}" Padding="10,4"
+                                            Click="MirrorButton_Click"/>
+                                    <Button Content="{Binding SelectedElement.ShapeButtonText}"
+                                            Style="{StaticResource YtButtonSecondary}" Padding="10,4"
+                                            Margin="8,0,0,0" Click="ShapeButton_Click"/>
+                                </StackPanel>
+                                <TextBlock Text="Drag to move · drag the corner dot to resize"
+                                           Foreground="#a0a0b0" FontSize="10" Margin="0,2,0,0"/>
+                            </StackPanel>
+
                             <!-- Webcam border config -->
                             <StackPanel Visibility="{Binding SelectedElement.IsWebcam, Converter={StaticResource BoolToVis}}" Margin="0,0,0,8">
                                 <TextBlock Text="Border Color" Foreground="#a0a0b0" FontSize="11" Margin="0,0,0,2"/>
@@ -384,9 +413,11 @@
                                                VerticalAlignment="Center" Margin="8,0,0,0" Width="20"/>
                                 </DockPanel>
                                 <DockPanel Margin="0,4,0,0">
-                                    <Button DockPanel.Dock="Right" Content="✓" Width="22" Height="22"
+                                    <Button DockPanel.Dock="Right" Width="22" Height="22"
-                                            Background="#22c55e" Foreground="White" FontSize="11" FontWeight="Bold"
+                                            Background="#22c55e" IsEnabled="False" Margin="4,0,0,0">
-                                            ToolTip="Applied" IsEnabled="False" Margin="4,0,0,0"/>
+                                        <Path Data="M4,9 L8,14 L16,4" Stroke="White" StrokeThickness="2"
+                                              Stretch="Uniform" Width="12" Height="12"/>
+                                    </Button>
                                     <Button DockPanel.Dock="Right" Content="✕" Width="22" Height="22"
                                             Background="#ef4444" Foreground="White" FontSize="11" FontWeight="Bold"
                                             ToolTip="Revert" Click="WebcamBorderRevert_Click" Margin="4,0,0,0"/>
@@ -404,9 +435,11 @@
                                                VerticalAlignment="Center" Margin="8,0,0,0" Width="20"/>
                                 </DockPanel>
                                 <DockPanel Margin="0,4,0,0">
-                                    <Button DockPanel.Dock="Right" Content="✓" Width="22" Height="22"
+                                    <Button DockPanel.Dock="Right" Width="22" Height="22"
-                                            Background="#22c55e" Foreground="White" FontSize="11" FontWeight="Bold"
+                                            Background="#22c55e" IsEnabled="False" Margin="4,0,0,0">
-                                            ToolTip="Applied" IsEnabled="False" Margin="4,0,0,0"/>
+                                        <Path Data="M4,9 L8,14 L16,4" Stroke="White" StrokeThickness="2"
+                                              Stretch="Uniform" Width="12" Height="12"/>
+                                    </Button>
                                     <Button DockPanel.Dock="Right" Content="✕" Width="22" Height="22"
                                             Background="#ef4444" Foreground="White" FontSize="11" FontWeight="Bold"
                                             ToolTip="Revert" Click="CountdownRevert_Click" Margin="4,0,0,0"/>
@@ -421,9 +454,11 @@
                                          BorderBrush="#2c3a5c" Padding="4,2" FontSize="12"
                                          ToolTip="https://example.com"/>
                                 <DockPanel Margin="0,4,0,0">
-                                    <Button DockPanel.Dock="Right" Content="✓" Width="22" Height="22"
+                                    <Button DockPanel.Dock="Right" Width="22" Height="22"
-                                            Background="#22c55e" Foreground="White" FontSize="11" FontWeight="Bold"
+                                            Background="#22c55e" IsEnabled="False" Margin="4,0,0,0">
-                                            ToolTip="Applied" IsEnabled="False" Margin="4,0,0,0"/>
+                                        <Path Data="M4,9 L8,14 L16,4" Stroke="White" StrokeThickness="2"
+                                              Stretch="Uniform" Width="12" Height="12"/>
+                                    </Button>
                                     <Button DockPanel.Dock="Right" Content="✕" Width="22" Height="22"
                                             Background="#ef4444" Foreground="White" FontSize="11" FontWeight="Bold"
                                             ToolTip="Revert" Click="WebRevert_Click" Margin="4,0,0,0"/>
@@ -432,21 +467,8 @@
 
                             <!-- Placeholder hint when no config available -->
                             <TextBlock Text="No configurable elements" Foreground="#555" FontSize="11"
-                                       HorizontalAlignment="Center" Margin="0,8,0,0">
+                                       HorizontalAlignment="Center" Margin="0,8,0,0"
-                                <TextBlock.Style>
+                                       Visibility="{Binding IsElementsPanelEmpty, Converter={StaticResource BoolToVis}}"/>
-                                    <Style TargetType="TextBlock">
-                                        <Setter Property="Visibility" Value="Collapsed"/>
-                                        <Style.Triggers>
-                                            <MultiDataTrigger>
-                                                <MultiDataTrigger.Conditions>
-                                                    <Condition Binding="{Binding SelectedElement}" Value="{x:Null}"/>
-                                                </MultiDataTrigger.Conditions>
-                                                <Setter Property="Visibility" Value="Visible"/>
-                                            </MultiDataTrigger>
-                                        </Style.Triggers>
-                                    </Style>
-                                </TextBlock.Style>
-                            </TextBlock>
                         </StackPanel>
                     </ScrollViewer>
                 </Grid>
@@ -845,32 +867,6 @@
                                        HorizontalAlignment="Center"/>
                         </StackPanel>
 
-                        <Border x:Name="OpacityChip" HorizontalAlignment="Left" VerticalAlignment="Bottom"
-                                Background="#D9000000" CornerRadius="6" Padding="10,8" Margin="12,0,0,12"
-                                Visibility="Collapsed">
-                            <StackPanel>
-                                <StackPanel Orientation="Horizontal">
-                                    <TextBlock Text="Opacity" Foreground="#e0e0e0" FontSize="13" VerticalAlignment="Center"/>
-                                    <Slider x:Name="OpacitySlider" Width="120" Minimum="0" Maximum="1" Margin="10,0,0,0"
-                                            Value="{Binding SelectedElement.Opacity, Mode=TwoWay}"
-                                            ValueChanged="OpacitySlider_ValueChanged" VerticalAlignment="Center"/>
-                                    <TextBlock x:Name="OpacityValueText" Text="100%" Foreground="#e0e0e0" FontSize="13"
-                                               Width="40" Margin="8,0,0,0" VerticalAlignment="Center"/>
-                                </StackPanel>
-                                <StackPanel Orientation="Horizontal" Margin="0,10,0,0"
-                                            Visibility="{Binding IsWebcamSelected, Converter={StaticResource BoolToVis}}">
-                                    <Button Content="{Binding SelectedElement.MirrorButtonText}"
-                                            Style="{StaticResource YtButtonSecondary}" Padding="10,4"
-                                            Click="MirrorButton_Click"/>
-                                    <Button Content="{Binding SelectedElement.ShapeButtonText}"
-                                            Style="{StaticResource YtButtonSecondary}" Padding="10,4"
-                                            Margin="8,0,0,0" Click="ShapeButton_Click"/>
-                                </StackPanel>
-                                <TextBlock Text="Drag to move · drag the corner dot to resize"
-                                           Foreground="#a0a0b0" FontSize="11" Margin="0,4,0,0"/>
-                            </StackPanel>
-                        </Border>
-
                         <!-- Desktop/game audio bar: overlaid at the bottom of the
                              preview, always visible. Meter + mute + volume control
                              live here; desktop audio itself is automatic WASAPI
@@ -1177,7 +1173,7 @@
                 </Button.Template>
             </Button>
 
-            <Border Background="#1a1a2e" CornerRadius="8" Width="520" MaxHeight="560"
+            <Border Background="#0A0C1A" CornerRadius="8" Width="520" MaxHeight="560"
                     VerticalAlignment="Center" HorizontalAlignment="Center"
                     Padding="24" BorderBrush="#333" BorderThickness="1">
                 <Grid>
@@ -1256,7 +1252,7 @@
 
                         <!-- Hub view -->
                         <StackPanel Visibility="{Binding IsLicensesOpen, Converter={StaticResource InverseBoolToVis}}">
-                            <Image Source="/ytLive;component/Assets/tyllive-icon.png" Height="140" Stretch="Uniform"
+                            <Image Source="/ytLive;component/Assets/ytLlive-logo.png" Height="100" Stretch="Uniform"
                                    HorizontalAlignment="Center" Margin="0,0,0,12"/>
                             <TextBlock Text="ytLlive" FontSize="22" FontWeight="Bold" Foreground="#e94560"
                                        HorizontalAlignment="Center"/>

MainWindow.xaml.cs

@@ -209,7 +209,7 @@ public partial class MainWindow : Window
         if (e.OriginalSource is not DependencyObject original) return;
         if (IsDescendantOf(original, PreviewGrid)) return;
         if (IsDescendantOf(original, SourceList)) return;
-        if (IsDescendantOf(original, OpacityChip)) return;
+        if (IsDescendantOf(original, ElementsPanel)) return;
         _viewModel.SelectedElement = null;
     }
 
@@ -224,7 +224,6 @@ public partial class MainWindow : Window
     {
         var selected = _viewModel.SelectedElement is { } s && IsDraggableElement(s);
         SelectionOverlay.Visibility = selected ? Visibility.Visible : Visibility.Collapsed;
-        OpacityChip.Visibility = selected ? Visibility.Visible : Visibility.Collapsed;
         if (selected)
             OpacityValueText.Text = $"{Math.Round(_viewModel.SelectedElement!.Opacity * 100)}%";
         TakeSnapshot();
@@ -232,7 +231,7 @@ public partial class MainWindow : Window
 
     // Static images and the webcam share the move/resize/selection behavior.
     private static bool IsDraggableElement(SceneElement element)
-        => element is Source { Type: SourceType.Image } or WebcamSceneConfig;
+        => element.IsDraggable;
 
     private void MirrorButton_Click(object sender, RoutedEventArgs e)
     {
@@ -304,8 +303,6 @@ public partial class MainWindow : Window
 
     private void Preview_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
     {
-        if (OpacityChip.IsMouseOver) return;
-
         var grid = (Grid)sender;
         var toCanvas = CanvasGrid.TransformToVisual(grid).Inverse;
         var p = toCanvas.Transform(e.GetPosition(grid));
@@ -538,7 +535,7 @@ public partial class MainWindow : Window
 
     private void WebcamBorderColorPicker_Click(object sender, RoutedEventArgs e)
     {
-        if (_viewModel.SelectedElement is not Models.Source src) return;
+        if (_viewModel.SelectedElement is not SceneElement src) return;
         if (sender is FrameworkElement fe && fe.ContextMenu == null)
         {
             var menu = new System.Windows.Controls.ContextMenu();

Models/SceneElement.cs

@@ -47,6 +47,9 @@ public abstract class SceneElement : INotifyPropertyChanged
     /// <summary>True only for singleton resources (webcam). Gates webcam-only UI.</summary>
     public virtual bool IsWebcam => false;
 
+    /// <summary>True for elements that can be dragged/resized in the preview (image, webcam).</summary>
+    public virtual bool IsDraggable => false;
+
     /// <summary>True only for image sources — the raw preview renderer's discriminator.</summary>
     public virtual bool IsImageSource => false;
 

Models/Source.cs

@@ -42,6 +42,8 @@ public class Source : SceneElement
         }
     }
 
+    public override bool IsDraggable => Type == SourceType.Image;
+
     /// <summary>The permanent scene backdrop (live desktop/game capture). Never removable/reorderable.</summary>
     private bool _isBackdrop;
     public bool IsBackdrop { get => _isBackdrop; set => Set(ref _isBackdrop, value); }

Models/WebcamSceneConfig.cs

@@ -12,5 +12,6 @@ public class WebcamSceneConfig : SceneElement
 {
     public string WebcamId { get; init; } = string.Empty;
     public override bool IsWebcam => true;
+    public override bool IsDraggable => true;
     public override ImageSource? DisplaySource => VideoImageSource;
 }

README.md

@@ -1,5 +1,9 @@
 # ytLlive
 
+<p align="center">
+  <img src="Assets/ytLlive-logo.png" alt="ytLlive — livestream smarter" height="120"/>
+</p>
+
 A creator-proof live-streaming and recording app for YouTube — native Windows (C# / WPF / .NET 8).
 
 ## Screenshot

Themes/Controls.xaml

@@ -519,17 +519,23 @@
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="ListBoxItem">
-                    <Border x:Name="Bd" Background="{TemplateBinding Background}"
+                    <Grid>
-                            CornerRadius="3" Padding="{TemplateBinding Padding}" Margin="0,1">
+                        <Border x:Name="Accent" Width="3" HorizontalAlignment="Left" CornerRadius="1"
-                        <ContentPresenter VerticalAlignment="Center"
+                                Background="#e94560" Margin="0,2" Opacity="0"
-                                          HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"/>
+                                VerticalAlignment="Stretch"/>
-                    </Border>
+                        <Border x:Name="Bd" Background="{TemplateBinding Background}"
+                                CornerRadius="3" Padding="{TemplateBinding Padding}" Margin="0,1">
+                            <ContentPresenter VerticalAlignment="Center"
+                                              HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"/>
+                        </Border>
+                    </Grid>
                     <ControlTemplate.Triggers>
                         <Trigger Property="IsMouseOver" Value="True">
                             <Setter TargetName="Bd" Property="Background" Value="#22ffffff"/>
                         </Trigger>
                         <Trigger Property="IsSelected" Value="True">
                             <Setter TargetName="Bd" Property="Background" Value="#1a3a66"/>
+                            <Setter TargetName="Accent" Property="Opacity" Value="1"/>
                         </Trigger>
                     </ControlTemplate.Triggers>
                 </ControlTemplate>

ViewModels/MainViewModel.cs

@@ -213,7 +213,10 @@ public class MainViewModel : ViewModelBase
         set
         {
             if (SetProperty(ref _selectedElement, value))
+            {
                 OnPropertyChanged(nameof(IsWebcamSelected));
+                OnPropertyChanged(nameof(IsElementsPanelEmpty));
+            }
         }
     }
 
@@ -263,6 +266,11 @@ public class MainViewModel : ViewModelBase
     /// <summary>Shows the mirror / clip-shape row in the source chip when a webcam is selected.</summary>
     public bool IsWebcamSelected => SelectedElement is WebcamSceneConfig;
 
+    /// <summary>True when the Elements panel should show the "No configurable elements" hint.</summary>
+    public bool IsElementsPanelEmpty => SelectedElement is { } el
+        && !el.IsDraggable && !el.IsWebcam
+        && el is not Source { Type: SourceType.Countdown or SourceType.WebSource };
+
     /// <summary>
     /// The reason the webcam feed is down (device in use, offline, locked, no frames),
     /// or null when it's alive. Surfaced as a red chip so a dead camera is never a

bugs.md

@@ -0,0 +1,9 @@
+# Bugs
+
+## iTunes music showing on mic meter
+Playing music via iTunes causes the mic meter to show audio levels. The WASAPI
+mic capture (`DataFlow.Capture`) and loopback capture (`DataFlow.Loopback`) are
+separate devices. If iTunes audio appears on the mic meter, it is likely acoustic
+coupling — the mic picking up speaker/headphone output. Verify by muting the mic;
+if the meter still shows levels, check Windows Sound settings for stereo mix or
+"listen to this device" routing.