Translate the elements in the installer user interface

Hi,

I have noticed that not all the elements in the installer user interface are translated. Please see the enclosed picture.

I saw a Japanese version of the installer, and the "Select Package Categories" was in English. Everything else was Japanese text. 

So if it is possible to have also this translated into Japanese, please consider translating it. Maybe nagrohn can help with the details?

And more generally, if the highlighted element is not translated to other languages from English, then consider asking help for the translations among TQtC employees. There are quite many different nationalities, hence translation help is available.