FOSS gamedev and creative worlds

So yesterday I was playing creative mode and I noticed there are thngs in the inventory jungle and snow biomes. So I went to make a new world and wondered around and never found either biome.... So I was wondering if these biomes are in the game? Can some one please tell me?

You can add v6_jungles to mg_flags to get jungles.
Snow biomes are not added yet.

In your minetest.conf.example file you'll find these 2 lines:

# Map generation attributes. Currently supported: trees, caves, flat, v6_biome_blend, v6_jungles, dungeons, nolight
#mg_flags = trees, caves, v6_biome_blend

To get jungles working you'll need to extend the attributes with jungles. Put this in your minetest.conf file:
mg_flags = trees, caves, v6_biome_blend, v6_jungles
to get the same kind of world with jungles.

Wow! Thanks guys! :D