Two suggestions:
The theme seems to have been pretty cool.
- Why do not you put on that site - https://3dsthem.es (You can send your themes there and put the previous here.)
- Use this editor themes - https://gbatemp.net/threads/release-usagi-3ds-theme-editor-net-library-testers-wanted.412233/
Thanks Ryumaru. I will follow your suggestion.