Hello Wild Horses I'm just not sure. Do you think it was more about the color yellow, or was it equally about the shirt as well?
There are a number of ways this could be interpreted symbolically, but it could even be quite literal, as a precognition. Like Neo in The Matrix when he is to "follow the white rabbit", maybe you are to "embrace the man in the yellow shirt".
Whether symbolic or literal, the dream is indicating that you should/need to "embrace"/accept whatever is meant by the yellow shirt.
Do any of the other various interpretations you found feel close to being right?
What do you think?