I'm running the Linux version of yEd. Using FreeSans font, I have attempted to add label text to an arrow line as follows:
<html><span style="text-decoration: overline">Label</span></html>
This results in no overline being added to the text "Label". If I add underline or line-through in the same manner, then the appropriate text decoration is applied as expected:
<html><span style="text-decoration: line-through">Label</span></html>
Any ideas of why only the overline decoration would fail to do anything?