Orange is my favourite colour, it means -depending on its context- a spiritual search for the infinite, enthusiasm, happiness, determination, and a thirst for action. And the butterfly, you already know, its metamorphosis represents emergence, regeneration, rejuvenation, awakening -and commonly- a resurrection into a life condition that is free of material concerns.
Once Zhuangzi dreamt he was a butterfly, a butterfly flitting and fluttering around, happy with himself and doing as he pleased. He didn't know he was Zhuangzi. Suddenly he woke up and there he was, solid and unmistakable Zhuangzi. But he didn't know if he was Zhuangzi who had dreamt he was a butterfly, or a butterfly dreaming he was Zhuangzi. Between Zhuangzi and a butterfly there must be some distinction! This is called the Transformation of Things.
Zhuangzi (莊子), "Zhuangzi dreamed he was a butterfly".