This bug was fixed in the package unity-tweak-tool - 0.0.7+-0ubuntu5
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unity-tweak-tool (0.0.7+-0ubuntu5) disco; urgency=medium
* Switch to source format 3.0 (quilt), because this in not a native package
* Use nemo-desktop to draw desktop icons under Unity (LP: #1814506)
*
Fixed in https://github.com/freyja-dev/unity-tweak-
tool/commit/8177103829df5c6c7743c2358f151b4f08cc92c6
** Changed in: unity-tweak-tool (Ubuntu)
Status: Confirmed => Fix Committed
** Changed in: unity-tweak-tool (Ubuntu)
Assignee: (unassigned) => J Phani Mahesh (phanimahesh)
**
** Attachment added: "Selection_260.png"
https://bugs.launchpad.net/ubuntu/+source/unity-tweak-tool/+bug/1575485/+attachment/4688826/+files/Selection_260.png
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Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: unity-tweak-tool (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1575485
** Package changed: gnome-terminal (Ubuntu) => unity-tweak-tool (Ubuntu)
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https://bugs.launchpad.net/bugs/1575485
Title:
"PyGIWarning: Gtk was imported without specifying a version