Allow configuration on MetroWindow WindowsCommands Template

[shudson302]

The ControlTemplate.Triggers has a hardcoded color set for the IsEnabled = False

<Trigger Property="IsEnabled" Value="false">
    <Setter Property="Foreground" Value="#ADADAD" />
</Trigger>

There is no way to alter this behavior without rewriting the template.
Could you please make this a color resource so that it can be changed.

This is under Themes/MetroWindow.xaml

[punker76]

fixed by d29bcf0