Same as the internal screens used to read "Line 1" between stops, when no stop was being displayed. It now just goes blank, instead of reading "Transadelaide" or perhaps "Glenelg Tram" or "City Tram".
I also noted that they are not using Bold text on the inside displays like all the melbourne trams and trains. The screens are strangly exactly the same size, yet the text is harder to read as it's in a thinner font, with no bold. The screens can scroll I'm sure, why not bold all the stop info, and actually print "The Next stop is; Stop 4 Greenhill Road". So people who get on don't think they are on the "South Road" Tram, or perhaps the "Glandore" tram!
Also while i'm being a pain, loose the "This tram is terminating, all passengers please vacate this tram" announcement, aside from the fact it sounds rude (This tram is terminating, we have your money, now get the heck off!=) Most trips the tram is NOT terminating, and is returning to it's origin. Tourists who just want a ride to glenelg and back may actually get off in confusion and wait for the next tram!