OpenBullet/OpenBullet/LogWindow.xaml

<Window x:Class="OpenBullet.LogWindow"
        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"
        xmlns:local="clr-namespace:OpenBullet"
        mc:Ignorable="d"
        Background="#222"
        Title="Log" Height="450" Width="800">
    <Window.Resources>
        <ContextMenu x:Key="ItemContextMenu">
            <MenuItem x:Name="copy" Header="Copy" Click="copyClick"/>
        </ContextMenu>
    </Window.Resources>
    
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="40" />
        </Grid.RowDefinitions>

        <ListView x:Name="logListView" Grid.Row="0" Foreground="Gainsboro" Background="Transparent" ItemsSource="{Binding Path=List, Mode=OneWay}" SelectionMode="Extended" BorderThickness="1">
            <!-- Align Headers to the Left -->
            <ListView.Resources>
                <Style x:Key="GridViewColumnHeaderGripper" TargetType="Thumb">
                    <Setter Property="Width" Value="18" />
                    <Setter Property="Background">
                        <Setter.Value>
                            <LinearGradientBrush StartPoint="0,0" EndPoint="0,1">
                                <LinearGradientBrush.GradientStops>
                                    <GradientStopCollection>
                                        <GradientStop Color="{DynamicResource BorderLightColor}" Offset="0.0" />
                                        <GradientStop Color="{DynamicResource BorderDarkColor}" Offset="1.0" />
                                    </GradientStopCollection>
                                </LinearGradientBrush.GradientStops>
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type Thumb}">
                                <Border Padding="{TemplateBinding Padding}" Background="Transparent">
                                    <Rectangle HorizontalAlignment="Center" Width="1" Fill="{TemplateBinding Background}" />
                                </Border>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="BorderBrush">
                        <Setter.Value>
                            <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                                <GradientStop Color="Black" Offset="0" />
                                <GradientStop Color="White" Offset="1" />
                            </LinearGradientBrush>
                        </Setter.Value>
                    </Setter>
                </Style>
                <Style TargetType="{x:Type GridViewColumnHeader}">
                    <Setter Property="HorizontalContentAlignment" Value="Left" />
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type GridViewColumnHeader}">
                                <Grid>
                                    <Border BorderThickness="0,0,0,1" BorderBrush="Black" Background="Transparent">
                                        <TextBlock x:Name="ContentHeader" Text="{TemplateBinding Content}" Padding="5,5,5,0" Width="{TemplateBinding Width}" TextAlignment="Left" />
                                    </Border>
                                    <Thumb x:Name="PART_HeaderGripper"
                                         HorizontalAlignment="Right"
                                         Margin="0,0,-9,0"
                                         Style="{StaticResource GridViewColumnHeaderGripper}" />
                                </Grid>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="OverridesDefaultStyle" Value="True" />
                    <Setter Property="Foreground" Value="Gainsboro" />
                    <Setter Property="FontFamily" Value="pack://application:,,,/Fonts/#Century Gothic" />
                    <Setter Property="FontSize" Value="14" />
                </Style>
                <Style TargetType="{x:Type ListViewItem}">
                    <EventSetter Event="MouseRightButtonDown" Handler="ListViewItem_MouseRightButtonDown" />
                    <Setter Property="ContextMenu" Value="{StaticResource ItemContextMenu}"/>
                    <Setter Property="Foreground">
                        <Setter.Value>
                            <SolidColorBrush Color="{Binding LogColor}"/>
                        </Setter.Value>
                    </Setter>
                    <Setter Property="Template">
                        <Setter.Value>
                            <ControlTemplate TargetType="{x:Type ListViewItem}">
                                <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}" 
                        BorderThickness="{TemplateBinding BorderThickness}" 
                        Background="{TemplateBinding Background}" 
                        Padding="0"
                        SnapsToDevicePixels="true">
                                    <GridViewRowPresenter 
                        HorizontalAlignment="Left" 
                        SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"
                        VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
                                </Border>
                            </ControlTemplate>
                        </Setter.Value>
                    </Setter>
                    <Style.Triggers>
                        <Trigger Property="IsMouseOver" Value="True">
                            <Setter Property="Background" Value="{DynamicResource BackgroundSecondary}" />
                        </Trigger>
                        <Trigger Property="IsSelected" Value="True">
                            <Setter Property="Background" Value="Black" />
                        </Trigger>
                    </Style.Triggers>
                </Style>
            </ListView.Resources>

            <!-- Show Headers by overriding the default style -->
            <ListView.Style>
                <Style TargetType="{x:Type ListView}" />
            </ListView.Style>

            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Time" Width="140" DisplayMemberBinding="{Binding Path=LogTime}" />
                    <GridViewColumn Header="Level" Width="70" DisplayMemberBinding="{Binding Path=LogLevel}" />
                    <GridViewColumn Header="Component" Width="100" DisplayMemberBinding="{Binding Path=LogComponent}" />
                    <GridViewColumn Header="Message" Width="10000" DisplayMemberBinding="{Binding Path=LogString}" />
                </GridView>
            </ListView.View>
        </ListView>

        <Grid Grid.Row="1">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="auto" />
                <ColumnDefinition Width="*" />
                <ColumnDefinition Width="auto" />
            </Grid.ColumnDefinitions>

            <StackPanel Grid.Column="0" Margin="5" Orientation="Horizontal">
                <Button x:Name="copyAllButton" Content="Copy All" Click="copyAllButton_Click" />
                <Button x:Name="clearButton" Content="Clear" Click="clearButton_Click"/>
                <CheckBox Content="Only Show Errors" IsChecked="{Binding OnlyErrors}" VerticalAlignment="Center" VerticalContentAlignment="Center"/>
            </StackPanel>

            <TextBox Grid.Column="1" x:Name="searchBar" Text="{Binding SearchString}" Margin="5" />
            <Button Grid.Column="2" x:Name="searchButton" Content="Search" Click="searchButton_Click" Margin="5"/>

        </Grid>
    </Grid>
</Window>