Stellar silver is the green silver that you get over there, that's a colour that's limited to the Forano model over here as is the slotted grill bumper that you have over there.
I am not too fond over the silver offered on the 5. However, I really do like the silver thats on the mazda 3. If they put that on the 5, then that would be my first choice.
As an aside, I now see my official first mazda 5, in my neighborhood. It is parked at night on the street. It is black, (not sure if touring or sport, but has the side sills trim on bottom), its windows are all tinted dark black, and I guess this person will be collecting a bunch of tickets.
Also, please give the car a wash. With all the mud, and dry mud on it, the paint job looks 10 years old, it deserves at least going through the car wash.
Stay safe