msfs-popout-panel-manager/MainApp/UserControl/PopOutPanelCard/MoveAndResizePanelButton.xaml

<UserControl
    x:Class="MSFSPopoutPanelManager.MainApp.MoveAndResizePanelButton"
    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:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    xmlns:system="clr-namespace:System;assembly=mscorlib"
    mc:Ignorable="d">
    <UserControl.Resources>
        <system:Double x:Key="IconSize">22</system:Double>
        <system:Double x:Key="ButtonSize">28</system:Double>
    </UserControl.Resources>
    <ToggleButton
        Width="{StaticResource ButtonSize}"
        Height="{StaticResource ButtonSize}"
        materialDesign:ToggleButtonAssist.OnContent="{materialDesign:PackIcon Kind=MoveResize,
                                                                              Size={StaticResource IconSize}}"
        Background="Transparent"
        Command="{Binding MoveResizePanelCommand}"
        IsChecked="{Binding DataItem.IsEditingPanel, Mode=TwoWay}"
        KeyboardNavigation.AcceptsReturn="False"
        ToolTip="Use keyboard commands to edit panel size &#x0a;and location. Please see help for more info.">
        <ToggleButton.Style>
            <Style BasedOn="{StaticResource MaterialDesignActionSecondaryToggleButton}" TargetType="ToggleButton">
                <Style.Triggers>
                    <DataTrigger Binding="{Binding DataItem.IsEditingPanel}" Value="True">
                        <Setter Property="Foreground" Value="LimeGreen" />
                    </DataTrigger>
                </Style.Triggers>
            </Style>
        </ToggleButton.Style>
        <materialDesign:PackIcon
            Width="{StaticResource IconSize}"
            Height="{StaticResource IconSize}"
            Kind="MoveResize" />
    </ToggleButton>
</UserControl>