When leaves change their colours during autumn and dry out, it's a change.
True
The vivid yellow and orange colours of fall leaves have actually been there throughout the spring and summer, but we haven’t been able to see them. The deep green colour of chlorophyll, which helps the plant to absorb life-giving sunlight, hides the other colours. In the fall, trees break down the green pigments and nutrients stored in the leaves. The nutrients are shuttled into the roots for reuse in the spring. As leaves lose their chlorophyll, other pigments become visible to the human eye.
Hence, during autumn, this is the change we see.