Okay, works. By the way, a little recommendation:
The G+ link under the article on the front page (not when you are on the articles site!) seems to always share http://www.domain.tld, not the article URL. I fixed this with by adding data-href on line 89 in content.php:
<div class=”g-plusone” data-href=”<?php the_permalink(); ?>” data-size=”medium”></div>
Furthermore the Facebook share-button is wider in German (“Like” vs. “Gefällt mir”). I changed “width:107” on line 79 in content.php to “width:117”. But I don’t know how it looks like in English now.
A problem that still resists is the translation. Like – in example – “Comments” on the front page. I had to change line 26 in content.php to:
<span>“><?php comments_number(__(‘0 Kommentare’,’themonic’),__(‘1 Kommentar’),__(‘% Kommentare’)); ?></span>
Else it does not translate to German, though it is in the .po file. This also applies to “Edit”, “Read More”, “Reply” and some other strings. Strange, but not critical.
Regards