Hi
@Grandmagill and welcome to the forum. Don't mind Trophywench, she can be a bit to the point in her posts but we forgive her because she is one of our most experienced and knowledgeable contributors so well worth listening to!
I use fromage frais as an additive to soup or to thicken sauces but use the straight, not low fat version. I do that because it generally has fewer carbs than the low fat versions and the additional fat is a useful, although small, contributor to my overall diet to balance the loss of calories from low carb with calories from elsewhere. Needless to say, I do not have weight or cholesterol problems.
If you read around the forum you will see little reference to the "traffic light" system. That's because most of us have eventually worked out a regime that works for us as individuals. There is a lot of commonality, but we are all different and start from different positions with different goals, so the idea that there is a simple system that will work for everybody is a bit alien to most of us.
How did you come to be diagnosed and do you know what your HbA1c result was?