extremehills.set("genInitialSnow", false)
extremehills.set("enableSnow", false)

i would like to disable snow on altitudes. it still generates on the peaks of extreme hills with this command. for now i will simply change the temperature and grass color.

problem has been resolved. genInitialSnow needs to be enabled in biometweakercore and the wiki states nothing of it.

Thanks, I've clarified this on the wiki.