My impression is that it is "degree of agreement". I.e., there are two lines with arrows in each of the diagrams (except the swedish). Those could represent the

My impression is that it is "degree of agreement". I.e., there are two lines with arrows in each of the diagrams (except the swedish). Those could represent the progress of the two respective delegations: If the lines get closer to each other, mutual agreement and/or shared understanding is growing, if the lines move away from each other, disagreement is growing. It's complete guesswork though and might be completely wrong. By that logic, the Swedish delegation would spend a lot of time just discussing with itself. I'm also not sure what the "diamond" patterns in some diagrams are supposed to mean. Both delegations switching up their respective viewpoints like in an old bugs bunny cartoon?