There is no preconfigured option to change the saturation of unselected images.
However, AutoViewer-Pro comes with source code so with Adobe Flash Professional and a knowledge of Actionscript, it is possible to display unselected images as grayscale by modifying the 'Image.as' file.
Open the 'Image.as' file in a plain text editor and make the following changes.
Add the following line of code to the imports at the top of the file.
... add the following code to the end on the hide() function:
var matrix:Array = [0.3, 0.59, 0.11, 0, 0, 0.3, 0.59, 0.11, 0, 0, 0.3, 0.59, 0.11, 0, 0, 0, 0, 0, 1, 0];
var grayscaleFilter:ColorMatrixFilter = new ColorMatrixFilter(matrix);
mcLoader.filters = [grayscaleFilter];
... and add the following code to the end on the show() function:
mcLoader.filters = [null];
Now publish a new SWF file as documented here.
Please note that the transition between grayscale and color in the example above is instant. There is no fading between the two. This would require further modification of the source code.
SimpleViewer Support Team