Add Crystal lang support

[Christoph Cullmann]

On 2021-07-18 11:23, Zohran wrote:
> Hello, I have a little request. Is it possible to add the support for
> the crystal programming language please ?
> 
> Thanks you very much for your work.

Hi,

thanks for using our tool ;)

If you know about the crystal language, perhaps you could try to provide 
some highlighting definition for it.

The format for this is documented, e.g. see

https://docs.kde.org/stable5/en/kate/katepart/highlight.html

Greetings
Christoph

-- 
Ignorance is bliss...
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