Flags

1. Flags

0 - Randomize the terrain a bit more
1 - Don't create overhangs, only hills
2 - Make the world more flat
3 - Create more hills (overrides 2)
4 - Create big biomes
5 - No Smoothing (Fastest)
6 - More smoothing (Slower)
56 - Even more smoothing (Slow)
65 - Max smoothing (Very very very slow)
7 - Sea level is 128 instead of 64

a - Various snow heights
b - No water caves
c - Create a bedrock labyrinth

2. Detailed Explanations

Note: Click on an image to view it in big.

2.1 Smoothing
No Smoothing
http://dev.bukkit.org/thumbman/images/41/193/600x340/screen10.png.-m1.png

Max Smoothing
http://dev.bukkit.org/thumbman/images/41/194/600x340/screen11.png.-m1.png

2.2 Water Caves
Water Caves spawn at sea level and look like this (although you won't find ice in caves anymore)
http://dev.bukkit.org/thumbman/images/41/304/600x375/screen4.png.-m1.png
http://dev.bukkit.org/thumbman/images/41/306/600x375/screen3.png.-m1.png
http://dev.bukkit.org/thumbman/images/41/307/600x375/screen2.png.-m1.png

2.3 Bedrock Labyrinth
To Do: Add chests (and eventually monster spawners)
They spawn from level 0 to 5 and look like this (! turned off by default !):
http://dev.bukkit.org/thumbman/images/41/309/600x340/screen6.png.-m1.png