Changes appear in the small preview close to the selected color
button.
Hue:
The slider and the input box allow you to select a hue in the
color circle (-180, 180).
Lightness:
The slider and the input box allow you to select a value
(luminosity): -100, 100.
Saturation:
The slider and the input box allow you to select a saturation:
-100, 100.
The Initialize Color
button deletes changes to hue, lightness and saturation of the
selected color.
