THREAD_METAL
Given that metal cloth decays the same as organic cloth, it might be nice to have a durability token you attachable to various materials the makes them last longer (with perhaps another token could make them last forever w.r.t. daily wear and tear). In particular, this would be useful for adamantine clothing since, being such a rare and valuable material, it's a shame to lose it in the same manner as (esp. at the same rate as) silk and plant fiber.STANDARD_FLESH
You may have changed it since 33b or so, but I recall STANDARD_FLESH overriding all other temperature settings (with the exceptions of HOMEOTHERM and FIXED_TEMP, IIRC). It'd be nice if it acted as a base parameter set while still allowing explicit temperature definitions to override it. Optionally, you could list the STANDARD_FLESH settings in file_changes.txt. Either way, we'll get to use the standard as a base for custom critters.