Adjusting Colors in Fireworks
- Select the entire picture or an area with the lasso tool.
- From the Filters menu choose Adjust Color.
- The auto levels will normalize a picture to have a standard variation of light and dark
- Brightness/Contrast will let you change one or both.

- Curves allows you to change the amount of red, green or blue for dark or light areas using a chart like this:

- Hue/Saturation allows you to increase or decrease the hue (change colors), saturation (intensity of colors) and/or lightness.

- Invert will flip colors to what is on the opposite side of the color wheel

- Levels lets you individually choose the amount of Red, green and blue

- If you don't want to change an entire picture but just an area, use the lasso to select the area and from the Filters menu > adjust color > to make it a darker or lighter or different shade