Tags: patch

Hi,

As suggested by the comment, this patch tries to reuse "temporary" faces
created by calendar.el.  Without this, if you have a diary entry like:

--8<---------------cut here---------------start------------->8---
%%(diary-block 4 1 2025 4 30 2025 '(:background "lightgrey")) A busy month
--8<---------------cut here---------------end--------------->8---

Emacs will create a new face for each day in the block.


In GNU Emacs 31.0.50 (build 5, x86_64-unknown-openbsd7.7, X toolkit) of
 2025-04-22 built on computer
Repository revision: 871ec9615a949e967bf7d19466eb9c56ed80ff7e
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12101016
System Description: OpenBSD computer 7.7 GENERIC.MP#626 amd64

Configured using:
 'configure CC=egcc CPPFLAGS=-I/usr/local/include
 LDFLAGS=-L/usr/local/lib MAKEINFO=gmakeinfo --prefix=/home/manuel/emacs
 --bindir=/home/manuel/bin --with-x-toolkit=lucid
 --with-toolkit-scroll-bars=no --without-cairo
 --without-compress-install'