So if you are fluent in a language not yet supported, please contact me! I will send you a text file which contains roughly a thousand individual labels. It looks (for English) like this:
A special mode can be enabled so you can see where a label is displayed on the screen (to see the context). Your task would be the translation of these labels into your target language.
Eternal fame awaits you as of course I will mention you as supporter on the site, and I will also hand out a lot of free promotion codes which you can use to turn your projects into premium projects.