MX

Palette Options tab
This tab allows you to alter the color settings of your exported image.
Dithering
&
Palette
The Dithering and Palette options only apply when you export with 256 color or less, and affect how
the image is displayed and its color palette. It is recommended to always use an Optimized palette. Set
Dither to none, which produces smaller files but may be banded, or Error Diffusion
, which creates higher quality results, but larger files.
Color Depth
Choose the number of colors your bitmap requires. The more colors, the larger the file (usually), and the
higher the quality. The True Color option supports up to 16 millions colors. True Color + Alpha
includes semi-transparent features such as soft shadows and transparency. For applications that support
alpha-channel PNG files this is the recommended format.
If you choose 256 colors of less, you have the option to use simple transparency (Wine glass icon-see
below). This doesn't support semi-transparent pixels, only "on/off" fully opaque or fully transparency
pixels, and so can produce jagged edges.
Max Colors
If you select a Color Depth of 256 or less you can control exactly how many colors are used in the file.
This provides a high degree of control over quality vs. file size. Just enter the required number of colors
and press the Preview
button to preview.
Buttons
These buttons (except Transparent Background) apply when exporting 256 color images or less.
These files are created with a limited palette of colors, and these controls provide a great degree of
control over those palette colors. See Color Selector above on how to select a color, or click on a
color in the Color Palette
).
Lock a Color
You can specify the number of colors you want in the palette of exported bitmaps. You may want to
ensure that certain colors always appear in the palette; you can lock these colors. Click on a color to
select it, then select the Lock
button. A small square appears in the bottom left of the color to tell you it is a locked color.
Make a Palette Color Web Safe
When clicked this button will shift the selected color to be one of the 216 common web browser palette
colors. This is a legacy system that is no longer particularly important or relevant, as nearly all computers
can display millions of colors, and there's no benefit in restricting web graphics to only this limited
palette.
Make the Image Background Transparent
Make any areas not covered by the selected objects transparent. Selecting this option automatically
makes one entry in the palette transparent.
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