Cosmetics

Cosmetics let an island look and feel the way its owner wants, independent of the world around it. Set the biome, lock the time of day, fix the weather, colour the border: small touches that make an island feel personal.

CommandWhat it does
/is cosmeticsCustomise your island's biome, time, weather and border
/is ambienceSet the visitor greeting, farewell and entry sound

What you can change

CosmeticEffect
BiomeRepaint the island's biome, changing grass colour, ambience and mob set
TimeLock the island to a time of day, or let it follow the world
WeatherHold clear skies or rain on the island regardless of the world
BorderColour the island border blue, green or red (or none)

These are presentation only; they do not change protection or worth. They are a reward you can gate behind progression, the skill tree or a shop, to give players something to show for their work.

Per island, not per world

A locked time or weather applies to the island, so a grid world full of islands can each have their own look without affecting their neighbours.

Border colour

The coloured border is a per-player WorldBorder around the island (blue = static, green = growing, red = shrinking) drawn with no resource pack or packets. Each player can hide it for themselves with the border-display toggle in /is toggle.

Island Ambience

Looks are half of it. Ambience is what an island says and plays when someone arrives, set live from a native dialog with /is ambience:

SettingWhat it does
GreetingShown to visitors as a title when they step onto your island. Full colour and gradient support (MiniMessage)
FarewellShown when a visitor leaves, in the action bar
Entry soundA sound key (for example block.amethyst_block.chime) played once on arrival; blank for silence

Greeting and sound fire only when a visitor actually crosses onto your island, not on every step, and members never greet themselves on their own island. It is the difference between an island that just sits there and one that feels built.

More than a welcome sign

Other skyblocks give you a plain greeting line. Here you get a styled title, a parting message and a sound, all per island, all editable in-game (and on Bedrock through Geyser, since it is a native dialog). Use it for a brand, a warning on a PvP island, or just a bit of personality.