Unable to use rich content for ScreenTip

[znakeeye]

ScreenTip does not support rich content, like e.g. ToolTip does.

<fluent:Button.ToolTip>
  <fluent:ScreenTip Title="Title">
    <fluent:ScreenTip.Text>
      <!-- This does NOT work! -->
      <Run Text="Hello"> <Run Text="World!" FontWeight="Bold" />
      <!-- Or some other UI thing. E.g. a user control or image... -->
    </fluent:ScreenTip.Text>
  </fluent:ScreenTip>
</fluent:Button.ToolTip>

Thus, you cannot produce nice screen tips like in Excel:

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Environment

• Fluent.Ribbon v6.x
• Windows 10
• .NET Framework 4.x

[batzen]

I totally forgot to mention that you can, at least, use an image on the left side by setting Image on a ScreenTip.