Not sure if this is an intended change or not, but the entity hitbox lines (F3+B) render completely white regardless of the light level, giving them an effect of glowing.
[media]In 1.14.4:
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Can confirm in 1.19.3 and latest snapshot 23w05a. Personally, but enough important to note, I think that this can be used as an exploit to see if there's any monster when in a dark cave or during night.
Can confirm in 20w51a. Seems intentional.