sourcegit/src/Views/CaptionButtonsMacOS.axaml

<UserControl xmlns="https://github.com/avaloniaui"
             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:v="using:SourceGit.Views"
             xmlns:m="using:SourceGit.Models"
             xmlns:vm="using:SourceGit.ViewModels"
             mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
             x:Class="SourceGit.Views.CaptionButtonsMacOS">
  <Grid Classes="caption_button_box">
    <StackPanel Orientation="Horizontal">
      <Button Classes="caption_button_macos" Click="CloseWindow" Margin="10,0,0,0">
        <Grid>
          <Ellipse Fill="{DynamicResource Brush.MacOS.Close}"/>
          <Path Height="6" Width="6" Stretch="Fill" Fill="#404040" Stroke="#404040" StrokeThickness="1" Data="{StaticResource Icons.Window.Close}"/>
        </Grid>
      </Button>
      <Button Classes="caption_button_macos" Click="MinimizeWindow">
        <Grid>
          <Ellipse Fill="{DynamicResource Brush.MacOS.Minimize}"/>
          <Path Height="2" Width="8" Stretch="Fill" Fill="#404040" Data="{StaticResource Icons.MacOS.Minimize}"/>
        </Grid>
      </Button>
      <Button Classes="caption_button_macos" Click="MaximizeOrRestoreWindow">
        <Grid>
          <Ellipse Fill="{DynamicResource Brush.MacOS.Maximize}"/>
          <Path Height="6" Width="6" Stretch="Fill" Fill="#404040" Data="{StaticResource Icons.MacOS.Maximize}"/>
        </Grid>
      </Button>
    </StackPanel>
  </Grid>
</UserControl>