From Jay:
I assume you are referring to the question about a list of ZT IDs. I also assume the question is for configuring animals. There are lists in the 4 DG topics "[cSuitableObjects] section in animal configuration", "[cCompatibleAnimals] section in animal configuration", "Animal, staff, and guest IDs for setting cPrey in animal configuration", and "cGenus id numbers", which are in the following board:
http://www.ztcdd.org/DG/index.php?board=307.0
In addition, here is a list of user made shelter IDs that are recognized by the animal configuration checker / suitability guide program:
2499 Fancy Small Shelter
2504 Large Fancy Shelter
2585 Natural Shelter
2726 Limestone Shelter
2744 Tunnel Shelter Entrance
2929 Gate Shelter
2930 Shelter For All Animals
2931 Cave Shelter
2934 Fancy Shelter
2935 Rustic Shelter
7572 Underground Cave - for specific habitat
7575 Burrow Shelter
7619 Rainforest Shelter
7692 Topiary Gardens Wooden Shelter
7744 Barn shelter
7946 Tree Trunk Shelter
7949 Shelter For Small Animals
8720 Vulcan Shelter
8721 Forest Shelter
8722 Baobob Tree Shelter
8723 Tropical Dino Cave
8724 Cage Shelter
8725 Highland Shelter
8726 Aftmound Shelter
8896 Small Rock Cave
8900 Burrow Complex
As for GIMP, although I also have GIMP 3.0.4, I use GIMP 2.8.22.