There are new settings for missing decorations.
This includes all cave/canyons-decorations.
Just run '/deepdark loadDefaults settings' or remove the settings file to add those settings.
What you can do now ?
- You can toggle off the complete decoration system.
- just set the value of each decoration to 0 or negative to let it not spawn anymore. Also the giant columns or deep holes can be toggled off with the settings!