Becomes more problematic in modpacks but still noticeable otherwise. All textures should have a resolution that is 2^n. (16, 32, 64, 128, etc).
"[03:15:19] [Worker-Main-1/WARN]: Texture arcanuscontinuum:item/ancient_staff_focus with size 24x24 limits mip level from 4 to 3"

currently a low priority, but will see about fixing it at some point soon