Turns out we'd neglected to upload one of the many internal staff update versions of the texture packs which circulated among some staff as beta's to tinker with the colors and textures of some of the newer blocks. In preparation of 1.13 being worked on, a quick middle-version was made before the next big update to cover some terracotta updates that were badly needed, as well as some general color enhancements.
The file is currently only accessible on Dropbox, but will soon be uploaded to the website and the server's /rpack command when tech is able to get their hands on it. This thread will remain up with a Dropbox download link in the meantime so that we can start making use of the blocks in new Regalian builds.
Version 27 Hotfit released, click link below.