[NTG-context] What is going wrong with this use of --mode for switching language?

[Gerben Wierda]

> On 8 Jul 2022, at 11:57, Taco Hoekwater <taco at bittext.nl> wrote:
> 
> 
> 
>> On 8 Jul 2022, at 11:42, Gerben Wierda via ntg-context <ntg-context at ntg.nl> wrote:
>> 
>> I have this minimal example:
>> 
>> \startmode[EL]
>> \setuplanguage[el][patterns={el}]\mainlanguage[el]
> 
> That (‘el’) is a non-existent language, so it never becomes active.

Aha. ‘EL’ is the official two-letter language code for the Greek language, so I assumed this was the language code as well.

So, what do I use for (modern) Greek?

G