data class LDtkTilesetDefinition(val identifier: String, val padding: Int, val pxHei: Int, val pxWid: Int, val relPath: String, val spacing: Int, val tileGridSize: Int, val uid: Int, val embedAtlas: String? = null)
Tileset definition is the most important part among project definitions. It contains some extra info about each integrated tileset. If you only had to parse one definition section, that would be the one.