gkrellm icon is not shown correctly in Menu (I am using openbox). Also, the graphics viewers/editors report errors and can not load icon gkrellm.png (mirage,ristetto) or show only upper part of it (feh, gimp). For example, $ feh /usr/share/icons/hicolor/48x48/apps/gkrellm.png libpng error: IDAT: invalid distance too far back The new libpng16 is a reason for that. As I understood, it is not a libpng16 bug and broken icon has to be fixed. There is a tool shipped with libpng-1.6.3 that helps out. $ pngfix --out=gkrellm-fixed.png gkrellm.png IDAT TFB maximum 11 13 2050 6134 gkrellm.png It will fix the issue in Fedora 20 and later versions.
I don't have a setup to test this with at the moment, but I ran the icon through optipng which not only caused the pngfix output turn to OK, but also cut down a few kB in size.
gkrellm-2.3.5-17.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/gkrellm-2.3.5-17.fc20
Package gkrellm-2.3.5-17.fc20: * should fix your issue, * was pushed to the Fedora 20 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing gkrellm-2.3.5-17.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-24176/gkrellm-2.3.5-17.fc20 then log in and leave karma (feedback).
gkrellm-2.3.5-17.fc20 fixes the issue. Thanks!
gkrellm-2.3.5-17.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.