[NTG-context] Using alegreya typescript

[juh+ntg-context at mailbox.org]

Dear all,

for a long time I never had to used a custom typescript, but now I want 
to use the Alegreya font and found the typescript on contextgarden.

https://wiki.contextgarden.net/Alegreya_Typescript

The script seems to cover a lot of variations.

https://wiki.contextgarden.net/Alegreya_Typescript

I include the typescript in an environment.


With this I get the Alegreya Regular font:

\environment alegreya
\setupbodyfont [alegreya, 11pt]
\starttext
\input lorem
\stoptext


With this I get the Alegreya Sans Regular font:

\environment juh.env-alegreya
\setupbodyfont [alegreya, sans, 10pt]
\starttext
\input lorem
\stoptext

I am unable to get the light variant.

\environment juh.env-alegreya
\setupbodyfont [alegreya-light, sans, 10pt]
\starttext
\input lorem
\stoptext

I guess that I miss a lot of things in the typescript. Is there some 
boilerplate code to test a typescript, so that I can see how it all works?

TIA
juh