Hello again Gary,
I tried exactly what you mentioned (Kendo 2013.1.319 and Firefox 21 on MacOS) however I was not able to reproduce such look. It seems the styles on your side are quite different (even the font face look different).
Check the attached screenshot.
Let me know if I missed something.
Kind Regards,
Petur Subev
Telerik
Join us on our journey to create the world's most complete HTML 5 UI Framework -
download Kendo UI now!