Simplified Color Manipulation

Go to Paint Edit > Color correction > Color manipulation to access this new tool.

It combines the functionality of several color correction tools (Color Balance, Brightness & Contrast, Saturation & Value, Color Replace) in one easy to use interface. Furthermore, you can preview the changes directly in the Paint and view windows.

The interface

The Color Manipulation Editor has three tabs, described below. The PreView check box, available in all three tabs, lets you compare the current state of the image with the original one, by switching between them in the modeling window.

AllColors tab: Sliders in this tab affect the entire image (all colors). You can control the Hue, Saturation, Luminance, Brightness, and Contrast for all colors simultaneously. You can adjust the Highlights, Shadows, Light Midtones and Dark Midtones independently, to be brighter or darker.

NoteIf Hue Adjustment is set to Colorize Hues (or Colorize Hues & Grays), the Hue Strength slider must be set to a value greater than 0.0 for the Hue slider to have an effect. The Hue Strength slider acts as a blending factor between the selected hue and the current colors.
ByColors tab: Sliders in this tab affect predefined portion of the image based on colors. It is useful to quickly change one general color into another.

The full color spectrum has been divided in 8 overlapping colors which can be simultaneously manipulated. The colors are overlapping as to not create hard breaks in the resulting image.

You can control the Hue, Saturation and Luminance for each of the eight colors.
Replace tab: This tab lets you select the color that you want to replace (Replace From), as well as the color you want to replace it with (Replace To).

The Replace From color can be specified as a range by adding several colors using the color picker. The Dropoff slider can be used to increase or decrease the tolerance for the selected colors.

The four buttons at the bottom of the window behave as follows:

Reset: Undoes all the modifications since the last “Apply”.

NoteTo reset individual sliders, drag the mouse to the small black mark in the center of the slider, and click on the white line that appears.
Undo: Undoes the last modification. You can press this button multiple times to revert modifications all the way back to the beginning.
Apply: Applies successive modifications without having to exit the tool. It bakes the resulting image and resets all the sliders to their neutral position.

Clicking on another tab at the top of the window also applies the last modification.
Accept: Applies the modifications as with the Apply button, but it also exits the tool. The last brush tool used becomes the active tool.

NoteTo undo a modification after clicking the Apply or Accept button, use Edit > Undo or Ctrl+Z.