The Load Settings select box lets you choose one of the predefined settings for this tab. You can also save your current settings for the future use.

The R, G, B controls let you compensate for the white balance by editing red, green and blue channels respectively. Please note that a white balance compensation can also be done using the White balance button below.

The Color map is an efficient tool to choose a white balance with one mouse click. You can also drag the black circle with the mouse and watch the effect at the same time.  Right click on the color map to reset it.

The Saturation of the dull colors changes the intensity of dull, not saturated colors but does not effect  already saturated ones. For selective change of saturation use the Saturation equalizer.

The  Saturation of the bright colors changes the intensity of the already saturated colors. Use this slider to prevent saturated areas from oversaturation. For selective change of saturation use the Saturation equalizer.

The Exposure warnings option shows overexposed and underexposed pixels. Too bright pixels are marked with a red color, too dark pixels - with a blue color.  This option is also avaliable with the Brightness tab.

Exposure warnings are off	Exposure warnings are on

The Convert to black&white option makes image monochrome and enables sliders described below to fine tune the conversion process. In this mode use RGB sliders and memory colors to define image tone (sepia, etc.). Use RGB Sensitivity sliders and an equalizer to make the image more impressive. The Load Settings select box at the top allows you to choose settings for many black and white films such as Agfa APX 100, Ilford Delta 100, etc.

The Red, Green, Blue Sensitivity sliders define luminance of different colors of the spectrum. You can achieve the same effect as using special professional monochrome films by changing the sensitivity profile with these sliders and equalizer.

Original image	Resulting image (blue sensitivity decreased)

The Memory color  () button opens a list of predefined memory colors. You can choose sepia or other filters.

Original file	Black and white	Sepia	Blue filter

The Reset button sets all controls to their default values (0).

The Reset ranges ()  button removes all selected color ranges. This button is present on the tab only if you already added at least one color range.

Pop up menu

Pop up (or local) menu is available by left clicking on the image. When you make a left click, the program saves a color of the area beneath the mouse cursor. Let us call it the selected area.

The Set white balance ()command tries to change the RGB sliders to make the selected area white/gray. To obtain better results select white, but not overexposed areas.

If you select one of the memory colors by clicking on its name or its image, the program will adjust RGB sliders so that the selected area has the same color as selected memory color.

If Ignore brightness checkbox is checked, the brightness of the selected area is preserved, only the tint is changed. Otherwise, the RGB sliders will be changed so that the selected area has the same color and brightness as the selected memory color.

Small triangles after the color name can be used to change position of the color in the list. Delete button removes color from the list.

Memory color select lets you choose one of the predefined colors as a target color.

Under the Memory color select the Color map and the Brightness map are located.

The Color map in its center has a tint of the source color and a brightness of the target color. White points show the limits of the color range. Black points show a position of the target color. Click on the Color map to change a tint of the target color.

The Brightness map in its center has a tint of the target color and a brightness of the source color. White points show the limits of the color range (i.e. the brightest and the darkest points). Black points show the position of the target color. Click on the Brightness map to change brightness of the target color.

Zoom buttons let you change the range of colors on the Color and Brightness maps.

Show selection button should be used to fine tune selection and make sure that the object is completely included into selection.

Reset button makes a target color to be equal to source color.

You can also define several rectangular and elliptic areas to form a selection. To create such a mask, make a left click on the image when color range dialog is open and choose "Add rectangle/ellipse to the mask" command. If Invert mask button is pressed, only pixels within defined areas will be processed.  Use Clear mask button to delete all the defined areas.

Color tolerance slider defines which colors are included into selection. You can see the size of the current selection on the Color map.

Press Save button to save color range and close the window. Press Cancel button to quit without saving.

The List button opens another window with a list  of all color ranges. The active color ranges are marked with a white background. You can delete some of them or all at once.

Include this color into selection - adjusts selection settings (including Color tolerance slider) so that the selection also includes this color.

Exclude this color from selection - adjusts selection settings (including Color tolerance slider) to exclude the color from selection.

Add rectangle to the mask, Add ellipse to the mask - these commands let  you form the mask for the selection. Use the mask to protect some areas from being changed during color range transformations.

Saturation equalizer lets you define saturation level for every hue in your image. A common task is to increase the saturation of the green tones but to keep the skin from reddening.

To change the equalizer curve simply click on the equalizer or drag the curve. To reset the equalizer make a right click on it.

White vertical line shows you the hue of the area beneath the mouse cursor.

To set black mark on equalizer simply click on the area of interest.