Single Textblock with multiple Font settings

Today, I faced a requirement where I had to show some text and a down-arrow in default Ribbon control. Now, since this ribbon can have only one child, I had to come up with smart solution without much of code-behind.
Application Menu










After surfing, I got to know about this Inline feature of Textblock.

TextBlock.Inlines property states: An InlineCollection containing the Inline elements that comprise the contents of the TextBlock.

I added:






You can also go with code-behind solution like this:



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