Use the "Gallery" size to display grouped collections of images. This setting generally results in a consistent height for displayed images (even if their aspect ratios differ) so that the group lines up evenly. Very wide images will be shown with a shorter height in order to constrain their overall size.
Specify the thumbnail behavior to allow users to view the images in a slideshow.
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a!imageField(
label: "Gallery",
images: a!forEach(
items: {
"https://source.unsplash.com/random/800x600",
"https://source.unsplash.com/random/900x600",
"https://source.unsplash.com/random/1024x768",
"https://source.unsplash.com/random/1000x800",
"https://source.unsplash.com/random/920x650",
"https://source.unsplash.com/random/810x580",
"https://source.unsplash.com/random/820x590",
"https://source.unsplash.com/random/830x600",
"https://source.unsplash.com/random/840x610",
"https://source.unsplash.com/random/850x620",
"https://source.unsplash.com/random/860x630",
"https://source.unsplash.com/random/870x640",
"https://source.unsplash.com/random/900x500",
"https://source.unsplash.com/random/910x510",
"https://source.unsplash.com/random/920x520",
"https://source.unsplash.com/random/930x530",
"https://source.unsplash.com/random/940x600",
"https://source.unsplash.com/random/940x610",
"https://source.unsplash.com/random/940x620",
"https://source.unsplash.com/random/940x630"
},
expression: a!webImage(
source: fv!item
)
),
size: "GALLERY",
isThumbnail: true
)
