Tweak a tinted theme

Hi Ralph,

You might need to explicitly redefine the brushes in Application.Resources that are used for disabled text rendering, like this:

<SolidColorBrush x:Key="{x:Static themes:AssetResourceKeys.ControlForegroundDisabledBrushKey}" Color="#6D6D6D" />

That shows how to override any resource brush (like the tinted ones) coming from our theme.

It didn't work for me as I was applying the tinted theme only to the Ribbon, not to the entire application.

What worked for me was overriding AssetResourceKeys in the Ribbon resources:

<ribbon:Ribbon>
    <ribbon:Ribbon.Resources>
        <SolidColorBrush x:Key="{x:Static themes:AssetResourceKeys.ToolBarButtonForegroundDisabledBrushKey}" Color="{DynamicResource {x:Static SystemColors.GrayTextColorKey}}" />
    </ribbon:Ribbon.Resources>

    <!-- STUFF -->

</ribbon:Ribbon>