Hi,
i use
kendo.common-bootstrap.min.css kendo.default-v2.min.css (for k-icon k-i-gear k-icon-xl) kendo.highcontrast.min.css
now Scheduler Background color and text color of days in a week and alldays are white
also this problem exist in following themes
Highcontrast,Black,MetroBlack,Moonlight
thank you