mate-tweak crashed with GLib.Error in __init__(): gtk-icon-theme-error-quark: Icon 'user-desktop' not present in theme gnome (0)

[ChrisOfBristol]

mate-tweak won't start with when user customises theme by changing colours.

ProblemType: Crash
DistroRelease: Ubuntu 15.10
Package: mate-tweak 3.5.2-1
ProcVersionSignature: Ubuntu 4.2.0-11.13-generic 4.2.1
Uname: Linux 4.2.0-11-generic i686
ApportVersion: 2.19-0ubuntu1
Architecture: i386
CrashCounter: 1
CurrentDesktop: MATE
Date: Tue Sep 29 19:16:10 2015
ExecutablePath: /usr/bin/mate-tweak
InstallationDate: Installed on 2015-09-25 (3 days ago)
InstallationMedia: Ubuntu-MATE 15.10 "Wily Werewolf" - Alpha i386 (20150924)
InterpreterPath: /usr/bin/python3.4
PackageArchitecture: all
ProcCmdline: /usr/bin/python3 /usr/bin/mate-tweak
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/mate-tweak']
SourcePackage: mate-tweak
Title: mate-tweak crashed with GLib.Error in __init__(): gtk-icon-theme-error-quark: Icon 'user-desktop' not present in theme gnome (0)
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Martin Wimpress  (flexiondotorg)]

I can't reproduce this in Ubuntu MATE 17.04 or Ubuntu MATE 17.10 daily.

[Launchpad Janitor (janitor)]

[Expired for mate-tweak (Ubuntu) because there has been no activity for 60 days.]