Hello,
It won't matter, unless it has a narrower kerf than your riving knife is set up for. Check just in case the 190 mm one is a narrow kerf one for a hand circular saw. I think your TS wants a 2.4 mm kerf, whilst narrow kerf blades can cover as little as 2 mm which will foul your Riving knife. It's worth investigating to be sure.
Mike.