MACROMEDIA FIREWORKS MX 2004-USING FIREWORKS Use Manual page 242

To select a color for transparency:
Click the Preview, 2-Up, or 4-Up button at the upper left of the Document window. In 2-Up
1
or 4-Up view, click a view other than the original.
In the Optimize panel, choose Index Transparency from the Transparency pop-up menu at the
2
bottom of the panel.
The canvas color is made transparent in the preview.
To choose a different color, click the Select Transparency Color button.
3
The pointer changes to an eyedropper.
Do one of the following to choose the color to make transparent:
4
Click a color swatch in the Optimize panel color table.
Click a color in the document.
To add or remove transparent colors:
Click the Preview, 2-Up, or 4-Up button at the upper left of the Document window. In 2-Up
1
or 4-Up view, click a view other than the original.
Note: You can add or remove transparent colors in Original view but won't be able to see your
results until you display a preview.
In the Optimize panel, click the Add Color to Transparency or Remove Color from
2
Transparency button.
Do one of the following to choose a color to add or remove from transparency:
3
Click a color swatch in the Optimize panel color table.
Click a color in the preview.
To make an image background transparent:
Click the Preview, 2-Up, or 4-Up button at the upper left of the Document window. In 2-Up
1
or 4-Up view, click a view other than the original.
Choose GIF as the file format in the Optimize panel, and choose Index Transparency from the
2
Transparency pop-up menu.
The canvas color is made transparent in the preview, and the graphic is ready for export.
Interlacing: Downloading gradually
When viewed in a web browser, interlaced images appear gradually while they are downloading.
They display at a low resolution first and then transition to full resolution by the time the
download is complete.
Note: This option is available only for GIF and PNG file formats. You can get similar results with a
JPEG by making it progressive. For more information, see
To make a GIF or non-Fireworks PNG interlaced:
•
Choose Interlaced from the Optimize panel Options menu.
242 Chapter 12: Optimizing and Exporting
"Optimizing JPEGs" on page 243.