Updated for 1.21.9 - 1.21.10 support.
Made trees in the windswept savanna biome much more sparse. The windswept savanna biome is supposed to be a semi-arid, near-desert type biome, and it had too much greenery for that.
Made trial chambers much rarer (remember, cartographers and explorer maps exist). Made woodland mansions more common (they were practically mythical due to the rarity of dark forests). Fixed bug where ores didn't generate in basalt deltas. Fixed bug where dripstone biomes would block badlands gold rates (fixed by making all shallow underground badlands at T>0.83). Fixed bug where lush caves would generate outside their temperature range in coastal areas (fixed by replacing those areas with stony shore underground).