Acer Film Scanner - Manual (Page 40)

English
30
Entry Box
While you drag within the Color Wheel to choose the
hue and saturation of color or drag the triangle below
the Lightness Bar to specify the lightness of color, the
related information will also be shown in the Entry
Boxes. You can also enter the values here directly.
When you have finished with adjustments, click on the OK button to
confirm your settings and close the dialog box. If you are not satisfied
with the adjustments, you can click on the Reset button and the
settings will return to the default, or click on the Cancel button to
cancel and close the dialog box.