[1.20] Key-pattern displayed on Akashic Bookshelf isn't lit correctly

[Robotgiggle]

Version used: 0.11.1, build 609

The key-pattern rendered on the front of a filled Akashic Bookshelf appears nearly pitch black rather than the normal white, as though it's not receiving any lighting.

[object-Object]

@Talia-12 any idea what's up with this?