The chameleon changes colour to match its surroundings, so tradition reads it as adaptability, and also as the question of how much you change to fit in.
When this appeared in your dream, what were you feeling?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.