If you want to show the borders for the weekdays, the left most border is not shown because another element is over the cell. It is not possible to hide this top left cell and show the left border for Sunday.

This is reproducible not only with Material theme but with the other themes as well.

Workaround:

        private void radScheduler1_CellFormatting(object sender, Telerik.WinControls.UI.SchedulerCellEventArgs e)
        {
            e.CellElement.ZIndex = 0;
        }

Please refer to the attached screenshot from Outlook.

Run the application on a Windows 10 machine and scroll to the bottom. Please refer to the attached gif file.

This request is to add Working hours range of the view, which will style the cells as working and non working. In addition, add a property ShowWorkingHours while will determine whether non-working hours are visible or not.

Or perhaps for the sake of consistency, we can have API as in the day view:
dayView.RangeFactor = ScaleRange.QuarterHour
dayView.RulerStartScale = 9
dayView.RulerStartScaleMinutes = 30
dayView.RulerEndScale = 14
dayView.RulerEndScaleMinutes = 45

Please refer to the attached sample project. When you start the application the form's text indicates how many times the AppointmentFormatting event is fired for only 30 appointments - more than 400 times. The more appointments you have , the more times the vent is initially fired,e.g. if you have 50 appointmens it is fired If you switch between the different views you will see how the counter increases its value.

Currently, only one resource can be printed on a single page. It should be possible to print the appointments for more than one resource on a single page, just like RadScheduler allows you to set the number of resources per view.

In Outlook, when the appontment height should be smaller than the height needed to accommodate 1 line of text, the appointment status size is being changed instead.

It would be nice if the RadScheduler allows dragging of multiple selected appointments and change the events'  start time in correspondence with the active appointment offset time.

ADD. RadScheduler - add the ability to change  the culture of the generated print document.

Implement similar functionality as the exact time rendering in Outlook (DayView) using the status area. Please refer to the attached screenshot.

When in multi day view if many days are being added, each day visual becomes so narrow that the application practically becomes useless. If there is horizontal scroll bar the view could be stretched and the user would be able to scroll between the days.

Currently RadScheduler does not support binding to DataView objects.

The functionality provided by the EditRecurrenceDialog should also be available in a user control. This would allow the users to embed it in their applications.

It should be possible to set the step of the ruler in Day/Week view to two or more hours.

Add the possibility to have multiple time intervals on the DayView's display range.