Media reference

Open a page in Composer in the site admin and select the section you are inspecting. Use Settings and Appearance alongside the fields below. Read the shared field guide for the meaning of the table columns.

Checked against the product’s code on 7 November 2026.

This reference lists the catalog fields and their basic starter configuration. Read Shared section fields for the default rules and the shared groups of fields added to these sections. A chosen preset can start with different values.

Viewport means the browser’s visible area. Renditions are saved copies of a picture at different sizes.

Gallery

A collection of pictures with layout, captions and presentation controls.

In a public gallery grid on a library theme or a site that was not migrated, a caption without a picture is left out. On a site that was not migrated, a native Gallery with no pictures draws nothing for visitors, in any layout. Composer keeps a Picture slot for an empty native gallery. A carousel with pictures still keeps its empty slides.

Also carries: Advanced fields, Appearance fields. See shared fields.

Field	Input	Required	Choices	Field default	Starter value
Section number pxLabelNumber	Formatted text	No	No fixed list	Not declared	Not set
Section label pxLabel	Formatted text	No	No fixed list	Not declared	Not set
Headline headline	Formatted text	No	No fixed list	Not declared	Not set
Layout layout	Choice	No	Grid (grid); Carousel (carousel); Masonry (masonry); Before / after pairs (beforeAfter)	Not declared	Grid
Captions captions	Choice	No	Below the image (default) (below); Overlay title on hover (overlay)	Not declared	Not set
Image size served (declared by the source) imageSize	Choice	No	Thumbnail (150×150 crop) (thumbnail); Medium (≤300px) (medium); Medium-large (≤768px) (medium_large); Large (≤1024px) (large); Full size (full)	Not declared	Not set
Image corner radius (declared by the source, e.g. 0px 0px 0px 0px) imageRadius	Text	No	No fixed list	Not declared	Not set
Image sizing imageSizing	Choice	No	Native gallery sizing (default) (native); Full width with declared proportions and fit (fluid); Declared image height (declared-height)	Not declared	Not set
Image height (auto or pixels, e.g. 240px) imageHeight	Text	No	No fixed list	Not declared	Not set
Minimum image height (auto or pixels) imageMinHeight	Text	No	No fixed list	Not declared	Not set
Maximum image height (none or pixels) imageMaxHeight	Text	No	No fixed list	Not declared	Not set
Image proportions (auto for natural size, or e.g. 4 / 3) cardImageAspect	Text	No	No fixed list	Not declared	Not set
Image position (horizontal and vertical, e.g. 20% 80%) imagePosition	Text	No	No fixed list	Not declared	Not set
Image fit cardImageFit	Choice	No	Fill (fill); Contain (contain); Cover (cover); Original size (none); Scale down (scale-down)	Not declared	Not set
Slides per view (carousel) slidesPerView	Number	No	No fixed list	Not declared	Not set
Source viewport ranges responsiveProfile	Source viewport ranges	No	No fixed list	Not declared	Not set
Carousel layout at a viewport cutoff carouselBreakpointMode	Choice	No	Keep the smaller layout at the cutoff (default) (max-width); Start the larger layout at the cutoff (min-width)	Not declared	Not set
Slides per view, tablet (carousel) slidesPerViewTablet	Number	No	No fixed list	Not declared	Not set
Slides per view, mobile (carousel) slidesPerViewMobile	Number	No	No fixed list	Not declared	Not set
Carousel slide position (declared by the source) carouselAlignment	Choice	No	At the start of the strip (start); Centred, its neighbours peeking on both sides (center)	Not declared	Not set
Space between slides (carousel, declared by the source, e.g. 0px) slideGap	Text	No	No fixed list	Not declared	Not set
Space between slides, tablet (carousel) slideGapTablet	Text	No	No fixed list	Not declared	Not set
Space between slides, mobile (carousel) slideGapMobile	Text	No	No fixed list	Not declared	Not set
Images sit inline on the text baseline (the source builder’s carousel anatomy) imageInline	Yes or no	No	No fixed list	Not declared	Not set
Grid columns columns	Number	No	No fixed list	Not declared	Not set
Carousel autoplay interval (ms; empty = off) autoplayMs	Number	No	No fixed list	Not declared	Not set
Carousel controls carouselNavigation	Choice	No	Arrows and dots (both); Arrows only (arrows); Dots only (dots); None (none)	Not declared	Not set
Carousel loops (declared by the source; Elementor infinite) loop	Yes or no	No	No fixed list	Not declared	Not set
Slides per step (carousel) slidesToScroll	Number	No	No fixed list	Not declared	Not set
Slides per step, tablet (carousel) slidesToScrollTablet	Number	No	No fixed list	Not declared	Not set
Slides per step, mobile (carousel) slidesToScrollMobile	Number	No	No fixed list	Not declared	Not set
Open full size on click lightbox	Yes or no	No	No fixed list	Yes	Not set
Images images	List of entries	No	No fixed list	Not declared	Empty list
Image URL images[].url	Picture	Yes	No fixed list	Not declared	Not set
Alt text images[].alt	Text	No	No fixed list	Not declared	Not set
Picture fit images[].fit	Choice	No	Show the whole picture (whole); Fill the frame (fill)	Show the whole picture	Not set
Caption images[].caption	Formatted text	No	No fixed list	Not declared	Not set
Image width attribute images[].width	Number	No	No fixed list	Not declared	Not set
Image height attribute images[].height	Number	No	No fixed list	Not declared	Not set
Image loading (declared by the source; absence means eager) images[].loading	Choice	No	Eager (loads immediately) (eager); Lazy (loads once scrolled into view) (lazy)	Not declared	Not set
Image decoding (declared by the source) images[].decoding	Choice	No	Async (async); Sync (sync); Auto (auto)	Not declared	Not set
Image fetch priority (declared by the source) images[].fetchPriority	Choice	No	High (high); Low (low); Auto (auto)	Not declared	Not set
This image’s corner radius images[].imageRadius	Text	No	No fixed list	Not declared	Not set
This image’s sizing images[].imageSizing	Choice	No	Use gallery setting (gallery); Full width, automatic height (fluid); Declared image height (declared-height)	Not declared	Not set
This image’s height (auto or pixels, e.g. 240px) images[].imageHeight	Text	No	No fixed list	Not declared	Not set
This image’s minimum height (auto or pixels) images[].imageMinHeight	Text	No	No fixed list	Not declared	Not set
This image’s maximum height (none or pixels) images[].imageMaxHeight	Text	No	No fixed list	Not declared	Not set
This image’s proportions (auto or width / height) images[].aspectRatio	Text	No	No fixed list	Not declared	Not set
This image’s fit images[].objectFit	Choice	No	Stretch (fill); Contain (contain); Cover (cover); Original size (none); Scale down (scale-down)	Not declared	Not set
This image’s crop position (horizontal% vertical%) images[].objectPosition	Text	No	No fixed list	Not declared	Not set
This image’s corner radius, tablet images[].imageRadiusTablet	Text	No	No fixed list	Not declared	Not set
This image’s corner radius, mobile images[].imageRadiusMobile	Text	No	No fixed list	Not declared	Not set
This image’s height, tablet (auto or pixels) images[].imageHeightTablet	Text	No	No fixed list	Not declared	Not set
This image’s height, mobile (auto or pixels) images[].imageHeightMobile	Text	No	No fixed list	Not declared	Not set
This image’s minimum height, tablet (auto or pixels) images[].imageMinHeightTablet	Text	No	No fixed list	Not declared	Not set
This image’s maximum height, tablet (none or pixels) images[].imageMaxHeightTablet	Text	No	No fixed list	Not declared	Not set
This image’s minimum height, mobile (auto or pixels) images[].imageMinHeightMobile	Text	No	No fixed list	Not declared	Not set
This image’s maximum height, mobile (none or pixels) images[].imageMaxHeightMobile	Text	No	No fixed list	Not declared	Not set
This image’s proportions, tablet images[].aspectRatioTablet	Text	No	No fixed list	Not declared	Not set
This image’s proportions, mobile images[].aspectRatioMobile	Text	No	No fixed list	Not declared	Not set
This image’s fit, tablet images[].objectFitTablet	Choice	No	Stretch (fill); Contain (contain); Cover (cover); Original size (none); Scale down (scale-down)	Not declared	Not set
This image’s fit, mobile images[].objectFitMobile	Choice	No	Stretch (fill); Contain (contain); Cover (cover); Original size (none); Scale down (scale-down)	Not declared	Not set
This image’s crop position, tablet (horizontal% vertical%) images[].objectPositionTablet	Text	No	No fixed list	Not declared	Not set
This image’s crop position, mobile (horizontal% vertical%) images[].objectPositionMobile	Text	No	No fixed list	Not declared	Not set
Spotlight (spans 2x2 in the grid) images[].span	Yes or no	No	No fixed list	Not declared	Not set
Compare image (the “after” frame) images[].compareUrl	Picture	No	No fixed list	Not declared	Not set
Compare image alt text images[].compareAlt	Text	No	No fixed list	Not declared	Not set
Registered renditions (stamped at import; JSON of size → file) images[].renditions	Picture	No	No fixed list	Not declared	Not set

Section number
pxLabelNumber

Input

Formatted text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Section label
pxLabel

Input

Formatted text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Headline
headline

Input

Formatted text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Layout
layout

Input

Choice

Required

No

Choices

Grid (grid); Carousel (carousel); Masonry (masonry); Before / after pairs (beforeAfter)

Field default

Not declared

Starter value

Grid

Captions
captions

Input

Choice

Required

No

Choices

Below the image (default) (below); Overlay title on hover (overlay)

Field default

Not declared

Starter value

Not set

Image size served (declared by the source)
imageSize

Input

Choice

Required

No

Choices

Thumbnail (150×150 crop) (thumbnail); Medium (≤300px) (medium); Medium-large (≤768px) (medium_large); Large (≤1024px) (large); Full size (full)

Field default

Not declared

Starter value

Not set

Image corner radius (declared by the source, e.g. 0px 0px 0px 0px)
imageRadius

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Image sizing
imageSizing

Input

Choice

Required

No

Choices

Native gallery sizing (default) (native); Full width with declared proportions and fit (fluid); Declared image height (declared-height)

Field default

Not declared

Starter value

Not set

Image height (auto or pixels, e.g. 240px)
imageHeight

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Minimum image height (auto or pixels)
imageMinHeight

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Maximum image height (none or pixels)
imageMaxHeight

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Image proportions (auto for natural size, or e.g. 4 / 3)
cardImageAspect

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Image position (horizontal and vertical, e.g. 20% 80%)
imagePosition

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Image fit
cardImageFit

Input

Choice

Required

No

Choices

Fill (fill); Contain (contain); Cover (cover); Original size (none); Scale down (scale-down)

Field default

Not declared

Starter value

Not set

Slides per view (carousel)
slidesPerView

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Source viewport ranges
responsiveProfile

Input

Source viewport ranges

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Carousel layout at a viewport cutoff
carouselBreakpointMode

Input

Choice

Required

No

Choices

Keep the smaller layout at the cutoff (default) (max-width); Start the larger layout at the cutoff (min-width)

Field default

Not declared

Starter value

Not set

Slides per view, tablet (carousel)
slidesPerViewTablet

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Slides per view, mobile (carousel)
slidesPerViewMobile

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Carousel slide position (declared by the source)
carouselAlignment

Input

Choice

Required

No

Choices

At the start of the strip (start); Centred, its neighbours peeking on both sides (center)

Field default

Not declared

Starter value

Not set

Space between slides (carousel, declared by the source, e.g. 0px)
slideGap

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Space between slides, tablet (carousel)
slideGapTablet

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Space between slides, mobile (carousel)
slideGapMobile

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Images sit inline on the text baseline (the source builder’s carousel anatomy)
imageInline

Input

Yes or no

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Grid columns
columns

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Carousel autoplay interval (ms; empty = off)
autoplayMs

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Carousel controls
carouselNavigation

Input

Choice

Required

No

Choices

Arrows and dots (both); Arrows only (arrows); Dots only (dots); None (none)

Field default

Not declared

Starter value

Not set

Carousel loops (declared by the source; Elementor infinite)
loop

Input

Yes or no

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Slides per step (carousel)
slidesToScroll

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Slides per step, tablet (carousel)
slidesToScrollTablet

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Slides per step, mobile (carousel)
slidesToScrollMobile

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Open full size on click
lightbox

Input

Yes or no

Required

No

Choices

No fixed list

Field default

Yes

Starter value

Not set

Images
images

Input

List of entries

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Empty list

Image URL
images[].url

Input

Picture

Required

Yes

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Alt text
images[].alt

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Picture fit
images[].fit

Input

Choice

Required

No

Choices

Show the whole picture (whole); Fill the frame (fill)

Field default

Show the whole picture

Starter value

Not set

Caption
images[].caption

Input

Formatted text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Image width attribute
images[].width

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Image height attribute
images[].height

Input

Number

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Image loading (declared by the source; absence means eager)
images[].loading

Input

Choice

Required

No

Choices

Eager (loads immediately) (eager); Lazy (loads once scrolled into view) (lazy)

Field default

Not declared

Starter value

Not set

Image decoding (declared by the source)
images[].decoding

Input

Choice

Required

No

Choices

Async (async); Sync (sync); Auto (auto)

Field default

Not declared

Starter value

Not set

Image fetch priority (declared by the source)
images[].fetchPriority

Input

Choice

Required

No

Choices

High (high); Low (low); Auto (auto)

Field default

Not declared

Starter value

Not set

This image’s corner radius
images[].imageRadius

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s sizing
images[].imageSizing

Input

Choice

Required

No

Choices

Use gallery setting (gallery); Full width, automatic height (fluid); Declared image height (declared-height)

Field default

Not declared

Starter value

Not set

This image’s height (auto or pixels, e.g. 240px)
images[].imageHeight

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s minimum height (auto or pixels)
images[].imageMinHeight

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s maximum height (none or pixels)
images[].imageMaxHeight

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s proportions (auto or width / height)
images[].aspectRatio

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s fit
images[].objectFit

Input

Choice

Required

No

Choices

Stretch (fill); Contain (contain); Cover (cover); Original size (none); Scale down (scale-down)

Field default

Not declared

Starter value

Not set

This image’s crop position (horizontal% vertical%)
images[].objectPosition

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s corner radius, tablet
images[].imageRadiusTablet

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s corner radius, mobile
images[].imageRadiusMobile

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s height, tablet (auto or pixels)
images[].imageHeightTablet

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s height, mobile (auto or pixels)
images[].imageHeightMobile

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s minimum height, tablet (auto or pixels)
images[].imageMinHeightTablet

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s maximum height, tablet (none or pixels)
images[].imageMaxHeightTablet

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s minimum height, mobile (auto or pixels)
images[].imageMinHeightMobile

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s maximum height, mobile (none or pixels)
images[].imageMaxHeightMobile

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s proportions, tablet
images[].aspectRatioTablet

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s proportions, mobile
images[].aspectRatioMobile

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s fit, tablet
images[].objectFitTablet

Input

Choice

Required

No

Choices

Stretch (fill); Contain (contain); Cover (cover); Original size (none); Scale down (scale-down)

Field default

Not declared

Starter value

Not set

This image’s fit, mobile
images[].objectFitMobile

Input

Choice

Required

No

Choices

Stretch (fill); Contain (contain); Cover (cover); Original size (none); Scale down (scale-down)

Field default

Not declared

Starter value

Not set

This image’s crop position, tablet (horizontal% vertical%)
images[].objectPositionTablet

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

This image’s crop position, mobile (horizontal% vertical%)
images[].objectPositionMobile

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Spotlight (spans 2x2 in the grid)
images[].span

Input

Yes or no

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Compare image (the “after” frame)
images[].compareUrl

Input

Picture

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Compare image alt text
images[].compareAlt

Input

Text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Registered renditions (stamped at import; JSON of size → file)
images[].renditions

Input

Picture

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Video

A player for a video file hosted on this site, with supporting text. Without a selected file, it draws no public player. For an outside provider, use the Video element, whose content is not protected by this site’s paywall.

Also carries: Advanced fields, Appearance fields. See shared fields.

Field	Input	Required	Choices	Field default	Starter value
Name label	Formatted text	No	No fixed list	Not declared	Starter text
Video file assetId	File	No	No fixed list	Not declared	Not set
Poster image posterAssetId	File	No	No fixed list	Not declared	Not set
Caption caption	Formatted text	No	No fixed list	Not declared	Not set
Original video address (from the migrated site) sourceUrl	Link	No	No fixed list	Not declared	Not set
Play automatically autoplay	Yes or no	No	No fixed list	Not declared	No
Start muted muted	Yes or no	No	No fixed list	Not declared	No
Loop loop	Yes or no	No	No fixed list	Not declared	No
Section number pxLabelNumber	Formatted text	No	No fixed list	Not declared	Not set
Section label pxLabel	Formatted text	No	No fixed list	Not declared	Not set

Name
label

Input

Formatted text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Starter text

Video file
assetId

Input

File

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Poster image
posterAssetId

Input

File

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Caption
caption

Input

Formatted text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Original video address (from the migrated site)
sourceUrl

Input

Link

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Play automatically
autoplay

Input

Yes or no

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

No

Start muted
muted

Input

Yes or no

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

No

Loop
loop

Input

Yes or no

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

No

Section number
pxLabelNumber

Input

Formatted text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Section label
pxLabel

Input

Formatted text

Required

No

Choices

No fixed list

Field default

Not declared

Starter value

Not set

Video file is chosen from the media library.

Poster image is chosen from the media library.

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Return to the Composer, select the section and review its editable fields. Apply your draft change and inspect the page preview before publishing.