https://www.telerik.com/kendo-angular-ui/components/grid/scroll-modes/virtual/
(Required) rowHeight—Has to represent the actual height of each Grid row (tr) element in the DOM. The provided rowHeight number is used for internal calculations and does not set the row height of the Grid.
This rowHeight seems to be some kind of magic number used for internal calculations. How do I know the value to set it to?