Is AutoZone's shop pro universal yellow anti-freeze safe?

Is AutoZone's shop pro universal yellow anti-freeze safe for my vehicle listed above SV?I recently went to AutoZone and I got a Duralast oil filler cap and a Duralast safety lever radiator cap for my 2014 Nissan Versa SV, I had written the oil filler cap and radiator cap on a note that's why they understood me even though I have a Greek accent and I have trouble making myself understood but I also wanted anti-freeze for the coolant overflow reservoir plastic tank and I had not written anti-freeze on the note, they finally understood my Greek accent but they first got me a 50/50 diluted shop pro anti-freeze but when I refused they finally got me a pure anti-freeze concentrate, the AutoZone brand shop pro anti-freeze says on the gallon bottle that it's universal yellow and fits all makes and models but as I was pouring it in the overflow tank reservoir it didn't look yellow to me, it looked like a clear colorless liquid, my question is that is this clear colorless liquid from AutoZone really anti-freeze and if so why doesn't it have any dye or coloring to show that it is anti-freeze? I smelled the gallon bottle of that AutoZone shop pro brand clear liquid so-called anti-freeze and it did have a kind of pungent odor related to anti-freeze the only problem is it's a clear colorless liquid and I am wondering if I was really pouring anti-freeze in my overflow tank reservoir and I need your expert advice, what do you think about the AutoZone brand shop pro anti-freeze concentrate and is it really anti-freeze when it's colorless like that? Otherwise the car is running fine and this month it's due for a bulk synthetic oil change from Walmart, the last bulk synthetic oil change was three months ago in December and it doesn't make any engine noise unless I stick my ear to the valve cover with the hood open when I just hear a low timing chain rumbling up close to the engine, the old bulk synthetic oil level is slightly over full, I need your expert opinion on the AutoZone brand anti-freeze because I don't know what I am getting and I know that Nissan anti-freeze is blue and not colorless, thank you in advance for your expert advice, Alex Stathas