I use the orage panel plugin to display the time. In preferences, I can
customise the font colour. Although the fact that I use custom colours
persists and the customised background colour is remembered, the
specific custom colour selected for the foreground does not persist from
one session to the next. For example, when I next boot my laptop, the
custom foreground colour is set back to black. My customised colour is
correctly used once set but only for that session.

I would expect the customised colour selection to "stick", persisting
between logins, restarts etc. That is, I would expect it to be
remembered in the same way as the customised background colour.

Dear submitter,

as the package orage has just been removed from the Debian archive
unstable we hereby close the associated bug reports.  We are sorry
that we couldn't deal with your issue properly.

For details on the removal, please see https://bugs.debian.org/977628

The version of this package that was in Debian prior to this removal
can still be found using http://snapshot.debian.org/.

Please note that the changes have been done on the master archive and
will not propagate to any mirrors until the next dinstall run at the
earliest.

This message was generated automatically; if you believe that there is
a problem with it please contact the archive administrators by mailing
ftpmaster@ftp-master.debian.org.

Debian distribution maintenance software
pp.
Joerg Jaspert (the ftpmaster behind the curtain)

orage 4.16.0-1 has been reintroduced into Debian unstable.

Please try it and see if the issue has been fixed.

If the issue has been fixed, please let us know on this bug.

If the issue has not been fixed, please search the upstream bug
database for orage to see if the issue is already reported and if it is
not reported, then report a new issue upstream. Please let us know
about any new or existing upstream bugs you file or find.

https://docs.xfce.org/apps/orage/bugs