You can find all sorts of color-based effects in here. Many of the effects seen here are not available anywhere else or will save you lots of time in comparison to the built-in plug-ins in your graphics application. The filters included can alter almost anything you can with a color including, but not limited to, brightness, inversion, shifting, frequency, intensity, contrast. This set is the most popular, so take a look and decide for yourself.

Black Shim.	Blacklight	Bright. Dark	Chrome	Color Expnd.
Color Repeat	Color Resc.*	Color Shifter	Color Swap	Colorize
Cycle	Factorize	Hilight	Hue Flip	Intensity Inv.
Limitizer	Monotize	Pastel	Photocopy	Popart
Primatize	Purify	Remove Grey	RGB Remove	RGB Split

Saturation	Solarize	Split Contrast*	Weighed Gr.	White Shim.

* - NOT included in the Mac archives.