These month tokens display the Gregorian month number using Roman Numerals.
The case of the letter r (r or R) determines if the roman numerals are displayed in lower case or upper case.
| 1 | I | 
| 2 | II | 
| 5 | V | 
| 8 | VIII | 
| 9 | IX | 
| 10 | X | 
| 12 | XII | 
A setting is available in the GridOptions to determine if the number 4 should be displayed as IV (classical) or IIII (modern).
Topic 174655, last updated on 19-Apr-2020