Another Color Picker 介绍
This rudimentary color picker plugin was designed for use in small UIs. It
does not use image files and does nothing fancy. It creates a number of small
elements (normally SPANs) which, when clicked, activate a callback function,
which is typically used to pass on the selected color to some other UI
element(s) (e.g. to change a background, text, or border color). The list of
colors it uses can of course be customized and the layout of the color list
itself is somewhat configurable.