Animating text color - wpf

Question

I need to animate the text color of a custom control between two colors, which are read from two Brush properties of the custom control. My resources look like this:
<SolidColorBrush x:Key="TextBrush">{TemplateBinding Foreground}</SolidColorBrush>
<SolidColorBrush x:Key="AltTextBrush">{TemplateBinding ForegroundAlt}</SolidColorBrush>
Right now, I am trying to animate using a ColorAnimation:
<ColorAnimation Storyboard.TargetName="MyControlText" Storyboard.TargetProperty="Foreground" To="{StaticResource AltTextBrush}" Duration="00:00:00.3000000" />
The ColorAnimation seems to want a Color object, rather than the Brush I am trying to pass. I think I can write an IValueConverter to get the color from the brush, but before I do that, I want to see if there is a simpler way to do the job. Here are my questions:
-- Is there a simple way to animate between two brush resources, or do I need to extract the color for animation?
-- If I need to extract the colors, is an IValueConverter best practice?
-- And finally, amI headed down the right road, or is there a simpler solution to this problem?
Thanks for your help.

Answer 1

Tried with using a Binding and it seems to be working like this
To="{Binding Source={StaticResource TextBrush}, Path=Color}"
Here's a xaml example
<Window.Resources>
<SolidColorBrush x:Key="TextBrush">Black</SolidColorBrush>
<Storyboard x:Key="blinkAnimation" Duration="0:0:5" >
<ColorAnimation Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)"
Storyboard.TargetName="TitleTextBlock"
To="{Binding Source={StaticResource TextBrush}, Path=Color}"
AutoReverse="True"
Duration="0:0:2"/>
</Storyboard>
</Window.Resources>
<Grid Background="Black" Name="grid">
<TextBlock x:Name="TitleTextBlock"
Background="Black"
Text="My Text"
FontSize="32"
HorizontalAlignment="Center"
VerticalAlignment="Bottom"
Foreground="White">
<TextBlock.Triggers>
<EventTrigger RoutedEvent="Loaded">
<EventTrigger.Actions>
<BeginStoryboard>
<StaticResource ResourceKey="blinkAnimation"/>
</BeginStoryboard>
</EventTrigger.Actions>
</EventTrigger>
</TextBlock.Triggers>
</TextBlock>
</Grid>