This is a heavily modified version of wabamn's "Dark Quizlet-Midnight," designed to be far more legible. However, this is in BETA, so many parts of the site are not finished, but it is still quite functional.
The first Design for the new Quizlet.nl. Works for both Google Chrome and FireFox
a darker theme that's easier on the eyes for quizlet check out my other style for evernote -> Dark Evernote–Midnight