colours mean jack in our trade. especially low voltage. dont think of each wire as a colour think of it as a reason for being there and its purpose. I had a customer argue with me saying to me that this wire is for that terminal because it shows it in the diagram. i guess he didnt want heat oh well. I ended up convincing him when turned on the furnace and he had heat and then he asked me how come i knew that. i smiled, gave him the invoice had him sign and walked away. old people are hard to deal with sometimes.
I dont want to give it away. seeing a thermostat is not a way for us to say which wire goes where Hint hint