Thanks for your feedback and welcome to the forums.
In the current Beta you can nest any content inside the button. So a workaround to make it look exactly the way you want is to add some graphics inside your button.
Code: Select all
<Border CornerRadius="5" Background="#FFAAAAAA">
<TextBlock Text="Some text near the image"/>
In one of the next betas (planned for Q4 2015) there will be full support for ControlTemplates, VisualStateManager, Animations, and more, so you will be able to completely customize the button appearance and behavior.
We are also going to add support for cursors soon.
Thank you again, and please feel free to keep posting feedback.