What is the name of the pigments that show up in the fall?

The pigments that become prominent in the fall are primarily anthocyanins, carotenoids, and xanthophylls. Carotenoids, which are responsible for yellow and orange hues, are present in leaves year-round but are usually masked by chlorophyll. As chlorophyll breaks down in autumn, anthocyanins can produce red and purple colors in some plants. The combination of these pigments contributes to the vibrant fall foliage we see.