<MenuItem x:Name="menuHightlightRBC" Header="_Highlight All Erythrocytes" IsCheckable="True" InputGestureText="Ctrl+H" />
</MenuItem>
<MenuItem x:Name="menuHelp" Header="_Help">
+ <MenuItem x:Name="menuCommandLineArguments" Header="_Command Line Arguments" />
<MenuItem x:Name="menuAbout" Header="_About" />
</MenuItem>
</Menu>