MX

Preview Controls
These buttons alter the preview of the images, but do not affect the exported file:

Zoom Tool: Click on a preview to zoom in. Shift-click to
zoom out. Drag over an area of the preview to zoom into
that area.

Push Tool: Lets you drag the image around in the preview
window.

Zoom to Fit: Scales the preview image to fit the window.

Zoom to 100%: Scales the image to full-size (100%).

Zoom to Resolution of Image (1:1): Has no effect for
GIFs. Scales the image so one pixel in the bitmap is one
pixel on screen. This is useful for previewing detail in the
bitmap.
The following tool is only relevant to files using less than 256 colors (but you will see the result when you
have the Palette Options
tab selected):
Color Selector: Moving the pointer over the image highlights the color
under the pointer. Click to select that color in the palette. You can then
use Palette Options
buttons (described below) to alter that color.
Preview:
The preview button is available on all tabs of this dialog. It updates the preview windows to reflect any
changes you have made to the export options.
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.
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