Contrast Balance allows to adjust colours and contrast.
BS Editor: Imagine, the traditional filter Luminosity/contrast, decomposed into four balances constant/contrast, resting on the following four oppositions: white-black, red-cyan, green-magenta, blue-yellow. You obtain a powerful tool, allowing to adjust colours and contrast. Whether it is to obtain Artistic Effects, or to retouch an image, you will adopt very quickly this plugin ! you can free download Contrast Balance 1.0 now.