Tooltips don't normally scale with their owner controls. However we can see how this is useful for a code editor.
What we'll do for the next build is this:
1) Allow IntelliPrompt popups to scale based on the SyntaxEditor.ZoomLevel property (which you can control with ctrl+mouse wheel or by setting it directly). It's about the same as a LayoutTransform but better.
2) Add a SyntaxEditor.Min- and MaxIntelliPromptZoomLevel property that governs the min/max zoom level IntelliPrompt can go to when matching SyntaxEditor.ZoomLevel. Therefore to prevent IntelliPrompt scaling, you could set the max to 1.0.