Cambiar apariencia listview

Para darle una apariencia mejor al listview se pueden usar estilos para el encabezado y los items.
(referencia:http://blog.vascooliveira.com/wpf-listview-styling-tutorial-part-i/)

<Window x:Class="MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <LinearGradientBrush x:Key="BackgroundBrush" StartPoint="0,0" EndPoint="0,1">
            <LinearGradientBrush.GradientStops>
                <GradientStopCollection>
                    <GradientStop Color="#FF6FBDE8" Offset="0"/>
                    <GradientStop Color="#FF4385BE" Offset="1"/>
                </GradientStopCollection>
            </LinearGradientBrush.GradientStops>
        </LinearGradientBrush>

        <LinearGradientBrush x:Key="HighlightBackgroundBrush" StartPoint="0,0" EndPoint="0,1">
            <LinearGradientBrush.GradientStops>
                <GradientStopCollection>
                    <GradientStop Color="#FF97d3f3" Offset="0"/>
                    <GradientStop Color="#FF4385BE" Offset="1"/>
                </GradientStopCollection>
            </LinearGradientBrush.GradientStops>
        </LinearGradientBrush>

        <LinearGradientBrush x:Key="BorderBrush" StartPoint="0,0" EndPoint="0,1">
            <LinearGradientBrush.GradientStops>
                <GradientStopCollection>
                    <GradientStop Color="#FFAFDDF6" Offset="0"/>
                    <GradientStop Color="#FF2969AA" Offset="1"/>
                </GradientStopCollection>
            </LinearGradientBrush.GradientStops>
        </LinearGradientBrush>

        <LinearGradientBrush x:Key="PressedBorderBrush" StartPoint="0,0" EndPoint="0,1">
            <LinearGradientBrush.GradientStops>
                <GradientStopCollection>
                    <GradientStop Color="#FF75aac7" Offset="0"/>
                    <GradientStop Color="#FF143c65" Offset="1"/>
                </GradientStopCollection>
            </LinearGradientBrush.GradientStops>
        </LinearGradientBrush>

        <Style x:Key="GridViewColumnHeaderGripper" TargetType="Thumb">
            <Setter Property="Width" Value="18"/>
            <Setter Property="Background" Value="#2e566b"/>
            <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>
        </Style>
        <Style x:Key="{x:Type GridViewColumnHeader}" TargetType="GridViewColumnHeader">
    <Setter Property="HorizontalContentAlignment" Value="Center"/>
    <Setter Property="VerticalContentAlignment" Value="Center"/>
    <Setter Property="Foreground" Value="#FFFFFF" />
    <Setter Property="Padding" Value="8"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="GridViewColumnHeader">
                <Grid>
                    <Border Name="HeaderBorder" Padding="{TemplateBinding Padding}" BorderThickness="0,1,0,1" BorderBrush="{StaticResource BorderBrush}" Background="{StaticResource BackgroundBrush}">
                        <ContentPresenter Name="HeaderContent" Margin="0,0,0,1" VerticalAlignment="{TemplateBinding VerticalContentAlignment}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}"/>
                    </Border>
                    <Thumb x:Name="PART_HeaderGripper" HorizontalAlignment="Right" Margin="0,0,-9,0" Style="{StaticResource GridViewColumnHeaderGripper}"/>
                </Grid>
                <ControlTemplate.Triggers>
                    <Trigger Property="IsMouseOver" Value="true">
                        <Setter TargetName="HeaderBorder" Property="Background" Value="{StaticResource HighlightBackgroundBrush}"/>
                    </Trigger>
                    <Trigger Property="IsPressed" Value="true">
                        <Setter TargetName="HeaderBorder" Property="Background" Value="{StaticResource PressedBorderBrush}"/>
                        <Setter TargetName="HeaderContent" Property="Margin" Value="1,1,0,0"/>
                    </Trigger>
                    <Trigger Property="IsEnabled" Value="false">
                        <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                    </Trigger>
                </ControlTemplate.Triggers>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
    <Style.Triggers>
        <Trigger Property="Role" Value="Floating">
            <Setter Property="Opacity" Value="0.7"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="GridViewColumnHeader">
                        <Canvas Name="PART_FloatingHeaderCanvas">
                            <Rectangle Fill="#60000000" Width="{TemplateBinding ActualWidth}" Height="{TemplateBinding ActualHeight}"/>
                        </Canvas>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Trigger>
        <Trigger Property="Role" Value="Padding">
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="GridViewColumnHeader">
                        <Border Name="HeaderBorder" BorderThickness="0,1,0,1" BorderBrush="{StaticResource BorderBrush}" Background="{StaticResource BackgroundBrush}"/>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Trigger>
    </Style.Triggers>
</Style>
    </Window.Resources>
    <Grid Margin="0">
        <ListView Name="lista">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="Nombre"
                      DisplayMemberBinding="{Binding Nombre}"
                      Width="140" />
                    <GridViewColumn Header="Edad"
                      DisplayMemberBinding="{Binding Edad}"
                      Width="140" />
                    <GridViewColumn Header="EMail"
                      DisplayMemberBinding="{Binding Email}"
                      Width="140" />
                </GridView>
            </ListView.View>
        </ListView>
    </Grid>
</Window>