While writing a windows store app I need to create a custom message dialog based on a popup (as described here). Usually message dialogs have a specific theme or style which depends on the system settings. I don't want to break the style of message dialogs, so I need to know how to reuse the system default style for message boxes, and especially buttons in message boxes.
So my question is as mentioned in the title: How can I access the WinRT default styles for MessageDialog controls?