Hello! Thank you! Updates are planned, but they have taken a backseat rececntly while I was focused in other Librarium content, I do plan for them to resume around march, the last update was documented in the dev log was on August 2023!
https://aekashics.itch.io/librarium-tileset/devlog/578165/librarium-tileset-upda...
If you have more questions let me know!