iLife `06 includes an updated version of iPhoto. One of the new features is it’s photo manipulation dashboard. Sliders on the bottom allow you to change the lights and darks in your photo. Other sliders allow you to change the over all temperature of the image making it look cooler (bluer/greener) or warmer (redder/oranger/yellower).
Adjusting your photo can be a hassle. Did you know you can fix the color and over all white balance of your photo with one click? To do this, simply hold the Apple button while clicking on a part of your image that you are positively sure is white. iPhoto automatically adjusts the white balance and temperature to make that part white, fixing your image.