Xperia Z3 (5.1) problem

hey, i just updated my xperia device to the new 5.1 firmware and i got a little problem with it, it's not a big deal but it really bothers me.
The watch/clock changed i used to have the one that was bold type for the hour and a thiner font for the minutes now its all bold type.

it used to be like this:

fotos.subefotos. com/d0192689bc49d4f871e54f6fb2174980o.jpg

and now:

fotos.subefotos .com/5647967eca94bb94ffcdf73b6ce7e977o.jpg

thanks for your help! and if i need another rom, can you please put it in the comments?