policy on foyer displays

Is there a general church policy on foyer displays? We have three units meeting in our building, and all three want to set up seasonal displays (Christmas trees, etc) in the foyers. I can't seem to find anything, so your input is greatly appreciated!

A similar question came up in this thread from several years ago: https://tech.lds.org/forum/viewtopic.php?t=10692 I can't find anything newer regarding posters and announcements in the foyer.

Handbook 2: Section 21.2.2 has information specifically on holiday and similar temporary decorations. Basically they are allowed if approved by the stake president. It also mentions some safety related policies that need to be followed.

The latest update to policies about foyer displays can be found here:
https://newsroom.churchofjesuschrist.or ... sus-christ