Hi Ibrahim,
Thank you for contacting Syncfusion support
We have prepared a sample which tries to meet your requirement.
In this sample we have achieved the image like you have sent in the last update by changing the CellTemplate , DayNameCellTemplate and HeaderTemplate.And also we have changed the PreviousScrollButtonTemplate,NextScrollButtonTemplate to achieve the specified design
Please download the sample from the below link
Sample link:
SfCalendarWinRT Please let us know if you need any other assistance
Regards,
M.Sugapriya