I have got a lot of german content and phpStorm draw a because of this many of green rippled lines in the translation files. So I looked for a spelling setup with different language and found the plugin Spellchecker and Spellchecker German Dictionary. I installed both, but the green lines stayed.
Second try with Preferences>Project Settings>Spelling was better. I downloaded the file neu_de.dic from http://www.winedt.org/Dict/. Set the path for Custom Dictionairies and most of the green ripplet lines disappeared. But there are still many of them, always under words with german umlauts [äöüß].
I think phpStorm get the file in the wrong format.
I tried to save the file in different style [latin1|utf-8|mac_] but the green lines are still there.
So there are two questions left:
1. For what are the plugins Spellchecker and Spellchecker German Dictionary because they have no impact on the Spellingbehavior in phpStorm? (Should I deinstall both, if I like spellChecking in File with phpStorm in German?)
2. How can I solve the problem with the umlauts?
Maybe it's important to know the system facts: ( I think os x's mac_roman throw a spanner in the works of phpStorm...)
mac OS X Lion