If I may, I disagree. I think a little colour (and style) goes a long way in helping new users. In fact, there is
some colour already by default with LL.
Obviously the Terminal is very important to LL users. After all, it
is one of the four apps chosen to be on Panel right out of the box. And yet, I think it could definitely be more welcoming.
Look at ElementaryOS' default Terminal for example:
It's cool yet calm. Slightly softer and more inviting. The font (Droid Sans Mono) a little more welcoming. Colour is tastefully applied and offers hints at discrete information.
It may be a little thing but if LL is truly trying to appeal to the new gnu/linux user then I would think they would want to make it as inviting as possible.
Thanks and great work by the way!