Matching A Target Background Color; Using Progressive Jpegs; To Help Preserve Fine Edges Between Two Colors - MACROMEDIA FIREWORKS 8-USING FIREWORKS Use Manual

To help preserve fine edges between two colors:

Select Sharpen JPEG Edges from the Optimize panel Options menu.
Use Sharpen JPEG Edges when exporting or saving JPEGs with text or fine detail to
preserve the sharpness of these areas. Choosing Sharpen JPEG Edges increases file size.

Using progressive JPEGs

Progressive JPEGs, such as interlaced GIFs and PNGs, are displayed at a low resolution
initially and then increase in quality as they download.
To export or save a progressive JPEG:
Select Progressive JPEG from the Optimize panel Options menu.
Some older bitmap-editing applications cannot open progressive JPEGs.

Matching a target background color

Anti-aliasing makes an object appear smoother by blending the color of an object into the
background on which it is placed. For example, if the object is black and the page on which it
rests is white, anti-aliasing adds several shades of gray to the pixels surrounding the object's
border to make a smoother transition between the black and white.
By setting the Matte option in the Optimize panel, you can anti-alias objects that lie directly
above the canvas to the Matte color. This is useful when exporting or saving graphics for
placement on web pages with colored backgrounds.
To match a target background color:
In the Optimize panel, select a color from the Matte pop-up menu. Match it as closely as
possible to the target background color on which the graphic will be placed.
Anti-aliasing is applied only to soft-edged objects that lie directly on top of the
canvas.
Optimizing in the workspace 349