In a previous discussion, bstoney provides a very nice example of how to wavy underline some text in WPF. It works great for normal fonts, but for bold and/or larger fonts, I find that the tiling gets off such that the tops of the wavy underline are clipped and they appear below the bottoms instead. I'm hoping to avoid learning all about WPF geometries in order to fix this problem. Does anyone know what the right solution might be?