Sun screen for the Kindle App

A little one that does help a lot, and I really mean a lot, when you're using the Nexus 7 to read ebooks, via the Kindle app.
Since the Kindle app refuses to honor the brightness settings from the own Nexus 7, it really blinds you, and that is literally blinds, specially if you read on the dark.

• Screen Filter

And its a freebie.