Currently is font size of version text displayed on JBDS splash screen hardcoded. It's fine until version text is not too long. When complete build id is displayed ( when property -DSHOW_BUILDID_ON_STARTUP=true is specified when starting eclipse) than version text is too long and is displayed only partially.
Logic how to calculate displayed text dimensions is already in source code so we need to find out maximal rectangle which can version text occupy and upon that dimensions properly calculate font size used for version text.