How to Style PivotItem Header - xaml

Question

I have an existing Pivot header template I am using, but it is not giving me the effect I need. I need the currently selected PivotItem to have a blue foreground and white background, while all other pivot items have a standard disabled foreground and background look. Currently below I have what I believe is everything except the blue foreground on the selected PivotItem, but I cannot figure out how to apply a foreground correctly to only the selected item?
<Style x:Key="PivotHeaderItemStyle1" TargetType="Primitives:PivotHeaderItem">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Padding" Value="21,0,1,0"/>
<Setter Property="Margin" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Primitives:PivotHeaderItem">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="SelectionStates">
<VisualState x:Name="Unselected">
<Storyboard>
<ColorAnimation Duration="0" Storyboard.TargetName="myback" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="{StaticResource PhoneDisabledColor}"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Selected">
<Storyboard>
<ColorAnimation Duration="0" Storyboard.TargetName="myback" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="{StaticResource PhoneBackgroundColor}"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="myback" Background="{TemplateBinding Background}">
<ContentControl x:Name="contentPresenter" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" Opacity="{StaticResource PhonePivotUnselectedItemOpacity}"/>
</Border>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="PivotStyle1" TargetType="phone:Pivot">
<Setter Property="Margin" Value="0"/>
<Setter Property="Padding" Value="0"/>
<Setter Property="Foreground" Value="{StaticResource PhoneForegroundBrush}"/>
<Setter Property="Background" Value="Transparent"/>
<Setter Property="ItemsPanel">
<Setter.Value>
<ItemsPanelTemplate>
<Grid/>
</ItemsPanelTemplate>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="phone:Pivot">
<Grid HorizontalAlignment="{TemplateBinding HorizontalAlignment}" VerticalAlignment="{TemplateBinding VerticalAlignment}">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid Background="{TemplateBinding Background}" Grid.RowSpan="3"/>
<ContentControl x:Name="TitleElement" ContentTemplate="{TemplateBinding TitleTemplate}" Content="{TemplateBinding Title}" HorizontalAlignment="Left" Margin="24,0,0,-7" Style="{StaticResource PivotTitleStyle}"/>
<Primitives:PivotHeadersControl x:Name="HeadersListElement" Grid.Row="1" ItemContainerStyle="{StaticResource PivotHeaderItemStyle1}" FontSize="70"/>
<ItemsPresenter x:Name="PivotItemPresenter" Margin="{TemplateBinding Padding}" Grid.Row="2"/>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>

Answer 1

Change the <ContentPresenter> to a <TextBlock>
Like so
<Style x:Key="PivotHeaderItemStyle1" TargetType="Primitives:PivotHeaderItem">
<Setter Property="Background" Value="Transparent"/>
<Setter Property="Padding" Value="10,0,10,0"/>
<Setter Property="Margin" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Primitives:PivotHeaderItem">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="SelectionStates">
<VisualState x:Name="Unselected">
<Storyboard>
<ColorAnimation Duration="0" Storyboard.TargetName="border_highlight" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="Transparent"/>
<ColorAnimation Duration="0" Storyboard.TargetName="contentPresenter" Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)" To="Green"/>
</Storyboard>
</VisualState>
<VisualState x:Name="Selected">
<Storyboard>
<ColorAnimation Duration="0:0:1" Storyboard.TargetName="border_highlight" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" To="PaleGreen"/>
<DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="contentPresenter"/>
<ColorAnimation Duration="0" Storyboard.TargetName="contentPresenter" Storyboard.TargetProperty="(TextBlock.Foreground).(SolidColorBrush.Color)" To="Blue"/>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border x:Name="border_highlight" Background="{TemplateBinding Background}" >
<!--<ContentPresenter x:Name="contentPresenter" ContentTemplate="{TemplateBinding ContentTemplate}" Content="{TemplateBinding Content}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" Opacity="{StaticResource PhonePivotUnselectedItemOpacity}"/>-->
<TextBlock x:Name="contentPresenter" Foreground="{TemplateBinding Foreground}" Text="{TemplateBinding Content}" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" Opacity="{StaticResource PhonePivotUnselectedItemOpacity}"></TextBlock>
</Border>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
Then you can animate the Foreground. Here's a screenshot of the above code. With Selected Color = Blue and Unselected Color = Green. You will need to add back in your background animation though.

Answer 2

#Teysz, I think that with Windows 10 UWP you better start from the default style for PivotItemHeader and make a copy of that in the ..Resources section of your XAML file. The default style cannot be inserted by Visual Studio 2015 so you have to get it yourself from:
%ProgramFiles(x86)%\Windows Kits\10\DesignTime\CommonConfiguration\Neutral\UAP\10.0.10240.0\Generic\generic.xaml
I found this at http://blog.hompus.nl/2015/09/04/responsive-pivot-headers-in-universal-windows-platform-apps/