Colors for threading

Question

I hate my machine. The color code colors between the orange and yellow are so much alike you can not tell them apart. Some dots are red and there is no orange or yellow. Also they have you start threading with 1 in the second tension for the upper looper then when you turn the page to do lower looper that thread starts on the first spool pin. This is totally backwards from other machines I have had. I can not get it to stay threaded no matter what I do. I have done the tension, changed the needles, which the left will break the thread as soon as you start so I give up. any help would be appreciated.