Fedora Account System
Red Hat Associate
Red Hat Customer
FedoraBubbles and FedoraDNA gdm themes have strings that are not translated, e.g. "Please enter your username" and others in the xml.in file. Either export the strings to the redhat-artwork POT file for translation, use Bluecurve translations, or, best, not use any custom strings at all and inherit from gdm if possible (like already done for "Shutdown", etc.).
I believe any prompts like "Please enter your username" come from pam, and should not be hardcoded in the xml, but we should check to make sure.
I looked through FedoraDNA.xml.in, and it has no nonempty text elements, except for formatting characters.