Hi Daniel,
You can set gradient as a background to the NGalleryItem but all items in one NGalleryPanel will be with same gradient settings.
However, you can change them on different states of the items.
You can do that by setting the appropriate values for the NGalleryPanel Palette that hosts the items.
Please, take a look at the following code snipped:
nGalleryPanel1.Palette.HighlightLight = Color1;
nGalleryPanel1.Palette.HighlightDark = Color2;
nGalleryPanel1.Palette.PressedDark = Color3;
nGalleryPanel1.Palette.PressedLight = Color4;
nGalleryPanel1.Palette.CheckedDark = Color5;
nGalleryPanel1.Palette.CheckedLight = Color6;
Best Regards,
Nevron Support Team