Shades is a FREE utility for controlling the brightness of your screen. It runs in the background providing easy control over the brightness of your display via a slick Mac-like interface, with greater dynamic range and finer granularity than the built-in controls.
Unlike other solutions, Shades works by obscuring your screen with a darkened overlay. It doesn't change your display settings and won't screw up your colour profile. It also means you won't lose your cursor!
What's new in this version:
[fix] Updated Shades to work correctly on Mac OS X 10.9 Mavericks.