Due to the storage format used tileset images are limited to
256 x 256 tiles, and there can only be up to 256 tilesets. Similarly
a multi-image tileset can only have up-to 256 images.
Since a tileset sheet with 256x256 tiles at 16x16 tile size is 4096x4096
pixels I think this restriciton is probably OK. Additonally if you actually
approach the 256 image/tileset limit it will likely be a GPU bandwidth issue
long before it is an issue with our storage format here.
Due to the storage format used tileset images are limited to 256 x 256 tiles, and there can only be up to 256 tilesets. Similarly a multi-image tileset can only have up-to 256 images.
Since a tileset sheet with 256x256 tiles at 16x16 tile size is 4096x4096 pixels I think this restriciton is probably OK. Additonally if you actually approach the 256 image/tileset limit it will likely be a GPU bandwidth issue long before it is an issue with our storage format here.