Puzzle to match colors
Example stack of one way how to do a puzzle (came up on the forum)
Grab a color from the bottom pane and drag it to the corresponding spot on the top pane.
Colors, Colors distribution in the 5 rows and Color shades adjustable by sliders.
Might help refine one's color discrimination skills.
Heavily commented code, hope it is helpful.
Uses Monte Goulding's colorLib.
Mind you: if you click in the lower part a color piece sticks to the mouse, click again to drop it.
This is to facilitate color comparisons by obviating the need to keep the mousebutton down.
As a revlet you can find it here
http://berndniggemann.on-rev.com/colorpuzzle/
I think it is only FireFox that supports Revlets of the current Browsers, use that one.