Graphics Programs Reference
In-Depth Information
Reduce the color values in the color table.
7
Using the Colors drop-down menu, increase the number to 32. Keep this window open for the next
part of the lesson.
Adding a matte to a GIF
When placing images over a colored background, you might see a pixelated edge. You can avoid this
edge by applying matting to the image in the optimization stage. Matting lets you to find pixels that are
almost transparent. However, unlike pixels in PNG images, pixels in a GIF image are either transparent
or not. In the following steps, you will apply matting that matches the background color of the web page
where the image will be placed.
1
With the Save for Web window still open, click the white section in the Matte drop-down menu. The
Color Picker appears.
Select a custom matting color.
2
In the Color Picker window, type
3366CC
into the Hexadecimal text field (located to the right of the #
sign). Click OK. Notice that the graphic now has a thin, dark-blue border around the edge. If you
choose to use this image on a page with a different background, remember to change the matting color
to match the new background.
Matting applied to the GIF image.
