Warriors get a latching, non illuminated switch.
Champions get an illuminated switch.
Heroes get 2 illuminated switches.
I'm not sure what you're asking about with ordering a non lit button saber and get one put in... ordering a warrior and asking for an illuminated switch anyways?
Keep in mind, a AV switches don't come in lime green so the blade and switch (and crystal chamber?) Wouldn't perfectly match.
That being said, you don't have to get a switch that matches your blade color. You can specify what color switch you want. Be sure you know what colors they have, though.