I've approached support about this, but since I can't upload a solution verbatim to a Dojo, I can't really reproduce it (that I know of).
In the attached screenshot, you can see that the DropDownList and other controls that are either Kendo controls or style by Kendo theme look normal, but the datePicker and NumericTextBox have a thick blue padding at the bottom. And the datePicker's icon is displaced to the right.
Any ideas are welcome. I can't post the example per se, as the apps are huge and involve a SQL database etc that I can't upload. However, this issue has been present for as long as I've been using Kendo controls, formerly in ASP.Net forms and now in html/WEBApi applications.
Thanks, Bob Graham