The correct way to translate the text in Franz Josef is by using the translation file. At present, the Franz Josef theme is about 50% translated into German. The theme’s translation is a community effort, and you can contribute to it on this page:
This free Support Forum relies on contributions from our support staffs and fellow Graphene themes users. While we endeavour to provide adequate and timely support, due to its voluntary nature responses are not guaranteed and may be delayed.
If you require urgent assistance, you may like to consider our Priority Support option.