User blog comment:DaNASCAT/Technical Update: March 17, 2015/@comment-5558012-20150318152309/@comment-126761-20150318165302

To deal with some overlap issues in some languages (e.g. German), we tweaked the point at which the toolbar splits onto two lines. Something seems to have gone wrong here, though - I'll bring it up with the team.

Regarding the missing highlighting - I assume this is on a wikia where the syntax highlighting beta is enabled? Otherwise, it would indeed have no obvious effect.