SeedScape

## Added

**Slime chunks.** Zoom in and press **S** to shade the chunks slimes spawn in.
They are invisible in game, so this is the one thing on the map you could not
otherwise find by exploring.

**Better colours for biomes from other mods.** Modded biomes are now coloured
by what they are rather than by their grass colour, so a modded ocean looks
like an ocean instead of a green patch, and snowy biomes look snowy. Two
different modded oceans still get their own shades.

## Fixed

**Grey "?" patches now fill in.** Parts of the map that could not be read
showed as flat grey areas labelled "?". Seedscape now has a second go at them,
and if it still cannot read one it says why in the log instead of leaving you
guessing.

**The map no longer breaks when you leave the screen and come back.** Opening
Data Packs, or customising your world type, and then returning to the preview
used to leave it showing a checkerboard until you left world creation
entirely.

**Resizing the window no longer switches the preview off** for the rest of the
session.

**Shift-drag now works when you release the mouse outside the map.** It used
to look like it had worked and quietly pre-generate nothing.

**A failed preview no longer leaves the map dimmed** with no explanation and
no retry.

**Pre-generation can no longer freeze the game** if your computer's clock
changes while it is running.