You can specify the use of either a global palette or a local palette for each image frame. If you specify the use of a global palette and let multiple frames share that palette, you can considerably reduce the sizes of your files.
Hint All the sample animations (which you can access "Open Sample File") provided with the application use global palettes.
Hint The use of a global palette ensures that the colors of your animation are displayed as faithfully as possible when viewed on a monitor supporting a relatively limited number of colors.
Set the use of a global palette as follows:
Set a global palette
Place a check mark in the [global palette] checkbox in the "Animation attributes" dialog box and edit the global palette using the "Edit Color Palette" dialog box .
If you select the "216 - color - web safe" palette from the Preset palettes, it should be possible to display your image in any environment.
Note, however, that if an image uses a specific color a lot (for example, if the image has an overall reddish hue), the preset palette might not be able to convert the colors clearly. In that case, you will have to edit the colors in the palette.
An easy way of doing this is to select one image and let the palette for that image act as the global palette. Do this as follows:
1. Set the global palette to Off.
2. Set the local palette of the image you select to Off.
Then, the global palette automatically turns On again and the palettes are copied to the global palette.
Turn the local palette of each image Off
The "Change Properties at One Time" dialog box provides a means of changing the properties of multiple frames at the same time.
Hint For details on the use of the dialog box, refer to Changing the properties of multiple files at the same time.
Note that if you change a local palette to a global palette, the palette is converted, and the quality of the image might degrade. To avoid this, do the following:
Set the global palette.
Set the "Preferences" dialog box "Image" tab and [Inserting Image] depending on the type of image you are using.
Hint For details of palette conversion, refer to Palette and Palette conversion.
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