Hi,
I installed the Kolab calendar plugin, but the design looks very strange, do you know how I can fix this?
I'm using Radicale as backend.
(https://i.imgur.com/CzOychP.png)
Try force refresh (ctrl + F5)
Or try an other skin, like this one : https://www.roundcubeforum.net/index.php?topic=29883.0
I had forgot to run,
lessc --relative-urls -x plugins/libkolab/skins/elastic/libkolab.less > plugins/libkolab/skins/elastic/libkolab.min.css
Its working now!