Oh, nevermind. It was just an icon theme problem.
** Changed in: gnome-control-center (Ubuntu)
Status: New => Invalid
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Appearance theme tab shows corrupted images in "Customize Theme"
https://bugs.launchpad.net/bugs/437848
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** Attachment added: "Screenshot-Customize Theme.png"
http://launchpadlibrarian.net/32533586/Screenshot-Customize%20Theme.png
** Attachment added: "Dependencies.txt"
http://launchpadlibrarian.net/32533594/Dependencies.txt
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Appearance theme tab shows corrupted images in "Customize Theme"
