Add
x:Name="ReleaseYear"
onto the border at line 2107
Then add the following after the closing TextBlock tag (</TextBlock>) on line 2169 (put your cursor after the '>' sign press enter and put the following code on a new line)
<flow:FlowBadge Margin="{Binding Converter={StaticResource ScaleConverter}, ConverterParameter='30,0,0,0'}" BadgeName="Achievements" DataContext="{Binding ActiveItem}" Height="{Binding ElementName=ReleaseYear, Path=ActualHeight}" />
Can adjust the margin how you see fit. Just remember you can't actually change default theme since we overwrite it on startup. Have to copy default to a new folder, name the copy folder, then make the change to the files in that folder. Then in BB change to THAT theme.