Considerable discussions at https://en.wikipedia.org/wiki/Talk:Paul_Signac supports the packed gallery mode over the older standard mode concerning articles on art.
The major argument that still remains for the old format is that the images are too close together in packed mode. If adjustable spacing could be introduced this could be rolled out to a few thousand articles immediately.
Example:
<gallery mode="packed" spacing="10px">
Description
Description
Event Timeline
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I think adding this kind of customisation, though superficially attractive, makes things more of a mess, not less.
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More practically, I think the only real issue is with very tall, but narrow images that have captions. Could a minimum width/height be instituted, so that the space occupied can't get too narrow leading to
cap
tion
s
like
this
underneath the image? It's a small number of images, but it's the only real issue.
This comment was removed by Ilanosortap.