terrain.center_paddingIsland shape
What it does
Moves the guaranteed-land core further in from the map border. Each 0.1 is about 5% of the map width, bigger padding means a smaller safe core and a wider belt where the noise decides what's land and what's sea.
What you seeLower it and solid land reaches almost to the coast (fat, full island); raise it and the safe core shrinks while the outskirts turn ragged and random.
Gotcha
Only matters when center_bump is above 0 — with the bump at 0 this does nothing at all.
See it on a real map
Reference seed 12345, size 4500. “Try live” opens the generator with the value applied.
default 0.10
0 — core reaches the coast fade try live →
0.3 — leaner island, wilder shores try live →
0.5 — tiny safe core try live →