Please use a clip icon instead of a folder to represent attachments.
The android client will do so. BTW this is a feature request by @jancborchardt who said it would be good to do this in the web interface also :)

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To be specific it鈥檚 @jenniferpiperek who brought it up, I simply agree with it. :)
@jancborchardt Where can I get the icon?
Didn't found it here: https://docs.nextcloud.com/server/17/developer_manual/design/icons.html
I assume @stefan-niedermann has it from Material icons, and it would be findable in his repo at https://github.com/stefan-niedermann/nextcloud-deck ? :)
Are those icons compatible to be used with AGPL?
Are those icons compatible to be used with AGPL?
Yep, it鈥檚 Apache 2.0 as per https://material.io/resources/icons/?style=baseline and https://github.com/google/material-design-icons :)
See specific compatibility info: https://en.wikipedia.org/wiki/Apache_License#Compatibility (TL;DR Apache is more permissive than the copyleft GPL, so it is ok to include Apache stuff into GPL, just not the other way around.)
Closing as this was implemented in the vue branch and is now merged to master