Sorry for the confusing title, but I'm not sure what to call those. I'm talking about this:
<Style x:Key="SkipBackAppBarButtonStyle" TargetType="Button" BasedOn="{StaticResource AppBarButtonStyle}">
<Setter Property="AutomationProperties.AutomationId" Value="SkipBackAppBarButton"/>
<Setter Property="AutomationProperties.Name" Value="Skip Back"/>
<Setter Property="Content" Value=""/> <!-- This one -->
</Style>
There are several of those in StandardStyles.xaml, but I have no idea how it works, any idea?
Thanks!
These are XML/hex-encoded Unicode characters in the Segoe UI font. Basically icons in form of typeface glyps. There is a "Styles Browser" app in the WinRT XAML Toolkit that shows all the icons, including the full set of 150 icons that Tim Heuer shared in his blog post.