ListPicker change borderbrush color when user tap

Question

I am using toolkit:listpicker finally a set background of fullMode, but now I can't change color of borderBrush when user are taped on ListPicker, I mean in default it set on PhoneAccentBrush color, even if I changed in App ((SolidColorBrush)Resources["PhoneAccentBrush"]).Color = ColorsPalete.LogoBlueColor;

color of choosen listPicker is like real device accent

<toolkit:ListPicker x:Name="ListPickerLearnMode" FullModeHeader="{Binding Path=LocalizedResources.SettingsPageLearnBreak, Source={StaticResource LocalizedStrings}}" FontStretch="Expanded">
 <toolkit:ListPicker.FullModeItemTemplate>
   <DataTemplate>
       <TextBlock Text="{Binding}" FontSize="36"/>                                     
   </DataTemplate>
 </toolkit:ListPicker.FullModeItemTemplate>
</toolkit:ListPicker>