Steamworks tileset

The City Interior 2 tileset contains the following themes:

= Features: =
 * Big Door 1
 * Big Door 2
 * Bridge Door
 * Camp
 * Chessboard
 * Door Transition
 * Exit 1
 * Exit 2
 * Fence Door 1
 * Fence Door 2
 * Pillar 1
 * Pillar 2
 * Pillar 3
 * Portal
 * Stairs Down
 * Stairs Up
 * Treasure 1
 * Treasure 2

= Groups: =
 * Camp Wall
 * Pillar 1x2
 * Platform 1 2x2
 * Platform 2 2x2
 * Platform 3 2x2
 * Platform 4 2x2
 * Platform 5 1x2
 * Stairs Down 2x2
 * Stairs Up 2x2
 * Wall Section 1 1x2
 * Wall Section 2 1x2

= Terrain: =
 * Bridge
 * Corridor
 * Doorway
 * Eraser
 * Fence
 * Floor
 * Pit
 * Wall