Rustling Leaves

Added

• Fallen leaves rot away. Leaves on the ground no longer stay forever: they thin out slowly, leaf by leaf, and near you the last ones crumble away instead of just vanishing. A natural carpet lasts about ten in-game days, thick piles much longer. Under the trees new leaves keep falling and the forest floor fills up again over time, also where you have not been for a while; paths you cleared and piles you raked slowly go back to the forest. Ground you come back to after a long time has rotted for as long as you were away.
• Snow and leaves do not mix: leaves are gone as soon as snow covers them, and leaves on snow rot within a minute or two. Leaf piles of Immersive Weathering are not affected, they rot only with their block.
• New client option leaves.litterLifetime (in-game days until a carpet of fallen leaves has rotted away, 0 keeps the leaves until something moves them).
• New client options seasons.springSummerFallRate (leaf fall in spring and summer) and seasons.seasonalDecay (how fast the litter rots in late autumn and winter).

Changed

• With Serene Seasons, leaves fall only when they should: leaf fall is an autumn event now. The first leaves come down in early autumn, most of them in mid and late autumn and the last few brown ones in early winter; in winter, spring and summer the trees keep their leaves (cherry trees still shed their blossom in spring). From late autumn on the leaves on the ground rot faster, so they are gone early in winter, before the snow builds up - in step with the seasons however long they are set in Serene Seasons. Ground you see for the first time gets a thick carpet of leaves only in autumn; in spring and summer just a scatter of old leaves, in winter none. Tropical biomes and dimensions without seasons are not affected.
• seasons.autumnFallRate now sets leaf fall at the peak of autumn (mid and late autumn), and seasons.winterFallRate defaults to 0 (no leaves in mid and late winter; a config file from an older version keeps its value).