Hi Alex,
I am afraid highlighting the axes is not supported in Kendo UI Chart at this point. If you wish you could submit this idea as a feature request at our UserVoice portal - this way the community would be able to evaluate it and if the suggestions gains popularity we will consider its implementation for future releases.
Meanwhile as an alternative idea I can suggest you changing axes and series colors (for example when use the Black theme you could set some light colors).
Regards,
Iliana Nikolova
Telerik
Join us on our journey to create the world's most complete HTML 5 UI Framework -
download Kendo UI now!