Minecraft Version: 1.12.2
Forge Version: 14.23.5.2860
Trinkets and Baubles Version: 0.31.4

Issue:
Book GUIs from various mods will render with a permanent white border around their edges. Mods used to test were Village Names 4 and Extra Utilities 2. This occurs due to the Mana Bar from Trinkets and Baubles, specifically the following config setting:

# Should the Mana Bar show even when full
            B:"02. Show when Full"=true

When set to false, the issue occurs 0% of the time. When set to true as above the issue occurs 100% of the time. The mana bar works as the setting intends it to, and other GUI seem unaffected, but I have not tested too many of them to know for certain. Images have been attached to demonstrate the issue exactly

Hello, Thank you for the bug report, I'll have to test, but this might already be fixed in my dev environment, Uhm, Not sure exactly when I can get an update out, but I am working on another 1.12 update due to some reasons, I'll add this to my Todo list