Custom Playfields

I'm taking a look at the custom planet, playfields, and sectors. I see a lot of references to textures and creatures. Is there a list of these somewhere?

examples:

Grass:
"GrassBrown02"

Decorations:
- [ OmicronPalm, 10]

MainBiome:
Textures:
- [ Grass01BrownCliff, 1 ]
- [ CliffBrown, 4 ]
- [ RockBrown01, 0 ]
- [ BedrockLava, 2 ]

Entities:
- Name: GolemsDesert