Slides
In 'Slides' category of the Wizard (Right click on Flash Object, then FlashDevlopment24 Wizard -> Advanced Image Gallery) you can customize the appearance of the slides.

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Margin
The margins between slide and the edge of the frame, in pixels.
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Border thickness
The width of the slide border, in pixels.
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Border color
The color of the slide border.
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Border transparent
Indicates the alpha transparency value of the slide border. Valid values are 0 (fully transparent) to 1 (fully opaque).
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Scale mode
Type of a slide scale mode. Acceptable values are "Fit" and "Fill".
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Loading color
The color of the slide loading icon.
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Shadow
A Boolean value that indicates whether the slide has shadow (true) or not (false).
Slideshow
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Slide duration
An integer that indicates the slide duration.
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Transition
Type of a slide transition. Acceptable values are "Fade", "Alpha", "Blur", "Scale", "MaskRotate", "MaskWave", "MaskBlind".
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Transition duration
An integer that indicates the duration of the slide transition.
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Hide previous slide
A Boolean value that indicates whether the previous slide is hidden (true) or not (false).
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Autostart
A Boolean value that indicates whether the previous slide show starts automatically (true) or not (false).
Caption
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Font
The font family of a slide caption.
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Size
The font size family of a slide caption.
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Font color
The font collor of a slide caption.
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Alignment
The align of the thumbs panel. Acceptable values are "Top" and "Bottom".
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Visible
A Boolean value that indicates whether the slide caption is shown (true) or not (false).
Description
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Background color
The background color of a slide description.
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Background transparent
Indicates the alpha transparency value of the description background. Valid values are 0 (fully transparent) to 1 (fully opaque).
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Visible
A Boolean value that indicates whether the slide description is shown (true) or not (false).