Created attachment 798202 [details] anaconda-comparing-russian-and-arabic-ui-no-mirroring-is-done-for-arabic.png GTK applications like gedit, gimp, ... mirror the UI when running in a locale of a language using a right-to-left script. Anaconda does not. It should. (Tested with Fedora-20-Alpha-x86_64-netinst.iso).
Created attachment 798203 [details] gedit-comparision-english-arabic.png gedit screenshots in English and Arabic. Shows that gedit mirrors when run in Arabic locale. LC_ALL=ar_EG.UTF-8 gedit mirrors the UI, LC_ALL=en_US.UTF-8 gedit show the "normal" UI.
Created attachment 798205 [details] gimp-comparison-english-arabic.png Screenshot comparing LANG=en_US.UTF-8 gimp and LANG=ar_EG.UTF-8 gimp The UI is mirrored in Arabic.
Created attachment 798219 [details] typing-root-password-in-arabic-in-anaconda.png Another screenshot when typing the root password in an Arabic installation in anaconda. One can see the the labels for the password entry fields have colons (:) on the left side, which looks completely wrong when the entry fields are to the right of these labels. This would also be fixed by mirroring the UI, then the entry fields would be correctly to the left of the labels.
Patches sent to anaconda-patches.
anaconda-20.18-1.fc20 has been submitted as an update for Fedora 20. https://admin.fedoraproject.org/updates/anaconda-20.18-1.fc20
Package anaconda-20.18-1.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 anaconda-20.18-1.fc20' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2013-17065/anaconda-20.18-1.fc20 then log in and leave karma (feedback).
Nice, I see it in Fedora 20 Alpha RC4 already!
anaconda-20.18-1.fc20 has been pushed to the Fedora 20 stable repository. If problems still persist, please make note of it in this bug report.