A DateFormat that generates names with the first letter capitalized

Now when i use for example this code:
```
var now = DateTime(2023, 3, 25);
var formatter = DateFormat("EEEE d MMMM", "it_IT");
```

i have: lunedì 25 marzo

but i'd like and it's correct this: Lunedì 25 Marzo

Is it possible ?