When the transparency information is lost

Check the contents of [Palette] on the "Preferences" dialog box, [Image] tab, [Axis].

If [Palette] is set to "Global Palette", transparency information for the image will be deleted whenever the global palette is applied to an image.

To insert an image, set the [Palette] for the environmental setting to "Local Palette." If you want to use the global palette, you can set it later in the "Image properties" dialog box.

Even if transparency information is deleted, you can set the transparent color with the "Image properties" dialog box.

Related Items

[Image] tab ("Preferences" dialog box)

"Image properties" dialog box