Storyboard ColorAnimation Binding

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WPF

I have Project setting value for ColorBand1bgdName.

In Windows Resources i have this code

<SolidColorBrush x:Key="resourceBrush" Color="{Binding Source={x:Static p:Settings.Default},Path=ColorBand1BgdName}"/>

In StoryBroad i have this code

<EventTrigger RoutedEvent="FrameworkElement.Loaded" SourceName="Button">
                            <BeginStoryboard>
                                <Storyboard  >
                                    <ColorAnimation Storyboard.TargetName="ButtonBrush"  To="{Binding Source={StaticResource resourceBrush},Path=Color}"  Storyboard.TargetProperty="Color"
                                     RepeatBehavior="Forever"
                                     AutoReverse="True"
                                     Duration="0:0:0.5"/>
                                </Storyboard>
                            </BeginStoryboard>
                        </EventTrigger>

Iam getting Cannot freeze this Storyboard timeline tree for use across threads. error how to resolve it ?

How to dynamically bind the ColorAnimation To Property ?