Player response colour?

Does anyone know if the color of the box a players response in player interaction means anything?

This is the type of box i mean:

I've seen a few different colors; green, black, orange not sure if there is more.

Im pretty sure it indicates how the chat went. The colurs i believe are the same as morale on the squad page, so green is all good and happy, orange and red are poor.

The only time I see different colours is when there is more than one person in the chat so I assumed it was just to make it easier to tell different people apart.

You can tell how they reacted by the morale in the top right corner of the box so I wouldn't have thought its that.

I don't think green always has the same meaning. I used to think so, but yesterday I tried to get a senior player to tutor a youth player, and when one of their response was a negative one, it still appeared in a blue box the same as the rest of the conversation

I don't think green always has the same meaning. I used to think so, but yesterday I tried to get a senior player to tutor a youth player, and when one of their response was a negative one, it still appeared in a blue box the same as the rest of the conversation

Yeah I've noticed that the colors can be the same even when 1 response is negative and the other is positive. Also don't think its based on there morale as I've had players have superb morale but the box color is orange, and there is a grey/black box which doesn't match any of the colors used for morale.