terminal/src/cascadia/TerminalApp/TabRowControl.xaml

<!--
    Copyright (c) Microsoft Corporation. All rights reserved. Licensed under
    the MIT License. See LICENSE in the project root for license information.
-->
<ContentPresenter x:Class="TerminalApp.TabRowControl"
                  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:local="using:TerminalApp"
                  xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
                  xmlns:mux="using:Microsoft.UI.Xaml.Controls"
                  mc:Ignorable="d">

    <mux:TabView x:Name="TabView"
                 VerticalAlignment="Bottom"
                 HorizontalContentAlignment="Stretch"
                 AllowDropTabs="True"
                 CanDragTabs="True"
                 CanReorderTabs="True"
                 IsAddTabButtonVisible="false"
                 TabWidthMode="Equal">

        <mux:TabView.TabStripFooter>
            <mux:SplitButton x:Name="NewTabButton"
                             x:Uid="NewTabSplitButton"
                             HorizontalAlignment="Left"
                             VerticalAlignment="Stretch"
                             AutomationProperties.AccessibilityView="Control"
                             BorderThickness="0"
                             Click="OnNewTabButtonClick"
                             Content="&#xE710;"
                             CornerRadius="{Binding Source={ThemeResource OverlayCornerRadius}, Converter={StaticResource TopCornerRadiusFilterConverter}}"
                             FontFamily="Segoe MDL2 Assets"
                             FontSize="12"
                             FontWeight="SemiLight"
                             UseLayoutRounding="true">
                <ToolTipService.ToolTip>
                    <ToolTip Placement="Mouse">
                        <TextBlock IsTextSelectionEnabled="False">
                            <Run x:Uid="NewTabRun" /> <LineBreak />
                            <Run x:Uid="NewPaneRun"
                                 FontStyle="Italic" /> <LineBreak />
                            <Run x:Uid="NewWindowRun"
                                 FontStyle="Italic" />
                        </TextBlock>
                    </ToolTip>
                </ToolTipService.ToolTip>
                <!--  U+E710 is the fancy plus icon.  -->
                <mux:SplitButton.Resources>
                    <!--  Override the SplitButton* resources to match the tab view's button's styles.  -->
                    <ResourceDictionary>
                        <ResourceDictionary.ThemeDictionaries>
                            <ResourceDictionary x:Key="Light">
                                <StaticResource x:Key="SplitButtonBackground"
                                                ResourceKey="TabViewButtonBackground" />
                                <StaticResource x:Key="SplitButtonForeground"
                                                ResourceKey="TabViewButtonForeground" />
                                <StaticResource x:Key="SplitButtonBackgroundPressed"
                                                ResourceKey="TabViewItemHeaderBackgroundPressed" />
                                <StaticResource x:Key="SplitButtonForegroundPressed"
                                                ResourceKey="TabViewItemHeaderForegroundPressed" />
                                <StaticResource x:Key="SplitButtonBackgroundPointerOver"
                                                ResourceKey="TabViewItemHeaderBackgroundPointerOver" />
                                <StaticResource x:Key="SplitButtonForegroundPointerOver"
                                                ResourceKey="TabViewItemHeaderForegroundPointerOver" />
                            </ResourceDictionary>
                            <ResourceDictionary x:Key="Dark">
                                <StaticResource x:Key="SplitButtonBackground"
                                                ResourceKey="TabViewButtonBackground" />
                                <StaticResource x:Key="SplitButtonForeground"
                                                ResourceKey="TabViewButtonForeground" />
                                <StaticResource x:Key="SplitButtonBackgroundPressed"
                                                ResourceKey="TabViewItemHeaderBackgroundPressed" />
                                <StaticResource x:Key="SplitButtonForegroundPressed"
                                                ResourceKey="TabViewItemHeaderForegroundPressed" />
                                <StaticResource x:Key="SplitButtonBackgroundPointerOver"
                                                ResourceKey="TabViewItemHeaderBackgroundPointerOver" />
                                <StaticResource x:Key="SplitButtonForegroundPointerOver"
                                                ResourceKey="TabViewItemHeaderForegroundPointerOver" />
                            </ResourceDictionary>
                            <ResourceDictionary x:Key="HighContrast">
                                <StaticResource x:Key="SplitButtonBackground"
                                                ResourceKey="TabViewButtonBackground" />
                                <StaticResource x:Key="SplitButtonForeground"
                                                ResourceKey="TabViewButtonForeground" />
                                <StaticResource x:Key="SplitButtonBackgroundPressed"
                                                ResourceKey="TabViewItemHeaderBackgroundPressed" />
                                <StaticResource x:Key="SplitButtonForegroundPressed"
                                                ResourceKey="TabViewItemHeaderForegroundPressed" />
                                <StaticResource x:Key="SplitButtonBackgroundPointerOver"
                                                ResourceKey="TabViewItemHeaderBackgroundPointerOver" />
                                <StaticResource x:Key="SplitButtonForegroundPointerOver"
                                                ResourceKey="TabViewItemHeaderForegroundPointerOver" />
                            </ResourceDictionary>
                        </ResourceDictionary.ThemeDictionaries>
                    </ResourceDictionary>
                </mux:SplitButton.Resources>
            </mux:SplitButton>
        </mux:TabView.TabStripFooter>

    </mux:TabView>

</ContentPresenter>