xchat-gnome Prefences window too big to display all content

[penalvch]

xchat-gnome Prefences window too big to display all content as per attach screenshot. I used to be able to WORKAROUND this type of problem with other programs by creating four workspaces, and moving the windows half way down the workspace, then switching to the workspace vertically below it, but it doesn't show anything in gnome-session-flashback (metacity).

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: xchat-gnome 1:0.30.0~git20141005.816798-0ubuntu6
ProcVersionSignature: Ubuntu 3.19.0-10.10-generic 3.19.2
Uname: Linux 3.19.0-10-generic x86_64
ApportVersion: 2.16.2-0ubuntu5
Architecture: amd64
CurrentDesktop: GNOME-Flashback:Unity
Date: Sun Mar 29 19:46:05 2015
InstallationDate: Installed on 2014-06-21 (281 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
SourcePackage: xchat-gnome
UpgradeStatus: Upgraded to vivid on 2015-03-13 (16 days ago)

[penalvch (penalvch)]

Closing as Ubuntu 15.04 EOL, haven't used xchat in years, and upstream doesn't maintain it anymore as per them:
https://bugzilla.gnome.org/show_bug.cgi?id=746997#c1