PDFOffice_Windows_exe/PDF Office/Styles/ComboxStyle.xaml

<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <ControlTemplate x:Key="ComboxItem" TargetType="{x:Type ComboBoxItem}">
        <Border
            Name="Bd"
            Padding="{TemplateBinding Control.Padding}"
            Background="{TemplateBinding Panel.Background}"
            BorderBrush="{TemplateBinding Border.BorderBrush}"
            BorderThickness="{TemplateBinding Border.BorderThickness}"
            SnapsToDevicePixels="True">
            <ContentPresenter
                HorizontalAlignment="{TemplateBinding Control.HorizontalContentAlignment}"
                VerticalAlignment="{TemplateBinding Control.VerticalContentAlignment}"
                Content="{TemplateBinding ContentControl.Content}"
                ContentStringFormat="{TemplateBinding ContentControl.ContentStringFormat}"
                ContentTemplate="{TemplateBinding ContentControl.ContentTemplate}"
                SnapsToDevicePixels="{TemplateBinding UIElement.SnapsToDevicePixels}" />
        </Border>
        <ControlTemplate.Triggers>
            <Trigger Property="UIElement.IsEnabled" Value="False">
                <Setter TargetName="Bd" Property="TextElement.Foreground" Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}" />
            </Trigger>
            <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="Selector.IsSelected" Value="False" />
                    <Condition Property="UIElement.IsMouseOver" Value="True" />
                    <Condition Property="UIElement.IsKeyboardFocused" Value="False" />
                </MultiTrigger.Conditions>
                <Setter TargetName="Bd" Property="Panel.Background" Value="#1F26A0DA" />
                <Setter TargetName="Bd" Property="Border.BorderBrush" Value="#A826A0DA" />
            </MultiTrigger>
            <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="Selector.IsSelected" Value="True" />
                    <Condition Property="UIElement.IsMouseOver" Value="False" />
                    <Condition Property="UIElement.IsKeyboardFocused" Value="True" />
                </MultiTrigger.Conditions>
                <Setter TargetName="Bd" Property="Panel.Background" Value="#3D26A0DA" />
                <Setter TargetName="Bd" Property="Border.BorderBrush" Value="#26A0DA" />
            </MultiTrigger>
            <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="Selector.IsSelected" Value="True" />
                    <Condition Property="UIElement.IsMouseOver" Value="True" />
                </MultiTrigger.Conditions>
                <Setter TargetName="Bd" Property="Panel.Background" Value="#1A477EDE" />
                <Setter TargetName="Bd" Property="Border.BorderBrush" Value="#1A477EDE" />
            </MultiTrigger>
            <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="Selector.IsSelected" Value="True" />
                    <Condition Property="UIElement.IsMouseOver" Value="False" />
                    <Condition Property="UIElement.IsKeyboardFocused" Value="False" />
                </MultiTrigger.Conditions>
                <Setter TargetName="Bd" Property="Panel.Background" Value="#3DDADADA" />
                <Setter TargetName="Bd" Property="Border.BorderBrush" Value="#DADADA" />
            </MultiTrigger>
            <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="Selector.IsSelected" Value="False" />
                    <Condition Property="UIElement.IsMouseOver" Value="False" />
                    <Condition Property="UIElement.IsKeyboardFocused" Value="True" />
                </MultiTrigger.Conditions>
                <Setter TargetName="Bd" Property="Border.BorderBrush" Value="#26A0DA" />
            </MultiTrigger>
            <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="Selector.IsSelected" Value="False" />
                    <Condition Property="UIElement.IsMouseOver" Value="True" />
                    <Condition Property="UIElement.IsKeyboardFocused" Value="True" />
                </MultiTrigger.Conditions>
                <Setter TargetName="Bd" Property="Panel.Background" Value="#1A000000" />
                <Setter TargetName="Bd" Property="Border.BorderBrush" Value="#1A000000" />
            </MultiTrigger>
        </ControlTemplate.Triggers>
    </ControlTemplate>

    <Style x:Key="ZoomComboxItemStyle" TargetType="ComboBoxItem">
        <Setter Property="Template" Value="{StaticResource ComboxItem}" />
        <Setter Property="Width" Value="224" />
        <Setter Property="Height" Value="32" />
        <Setter Property="VerticalContentAlignment" Value="Center" />
        <Setter Property="FontFamily" Value="Segoe UI" />
        <Setter Property="FontSize" Value="14" />
    </Style>
</ResourceDictionary>