求词性解释.Despite its immensity,it is both simple and elegant,fu

……fulfilling its designer's dream to create 'an enormous object drawn as faintly as possible'.
＝……and it fulfills its desingner's drema to creat'an enormous object as faintly as possible.
整个fulfilling后面是个状语从句,修饰前面.
可见,是动词不是形容词.