Tfly don't look for any one particular type. That sort of testing is a little dated now. They look for strengths in certain areas that any character can have. For instance, a simplified example is as follows.
They want people who possess leadership qualities. So, they look for strengths in the area of leadership. You can be introvert, extrovert or any kind of vert you want, but you need to display leadership qualities, which any type can have.....
And so the list goes on with other qualities such as decision making, communication skills, followership, spatial awareness, ability to work under pressure etc etc etc.
So I wouldn't worry about trying to change your personality for the tests, what I would concentrate on is being honest and consistent, then you can't be tripped up.
By the way, moon is the odd one out, as the other two produce light, the moon only reflects it.
Best I get back on to Grainee for you Amex!
PP