Where are tropical rainforest located in africa south of the sahara

Africa has a large extent of tropical seasonal forests and savannas; a band runs through sub-saharan Africa and runs down the eastern coast with another band extending across the continent south of the tropical rainforest. There are extensive areas of these biomes in India, southeast Asia, and northern Australia as well.

I'm pretty sure it's c. extremely gradual but not 100% sure though.