As of R2 2020 version of the Telerik UI for ASP.NET Core suite, the Calendar widget introduces a new component type. It aims to enhance the existing rendering and deliver a fresh and modern look and feel.
By default, the Calendar is initialized with the
classic render mode. In order to set it to
modern, configure the options of the widget as follows:
@(Html.Kendo().Calendar() .Name("calendar") .ComponentType("modern") )
As a result, the appearance of the widget is alternated.