It is happening for all characters when they are the active character and you are looking at their inventory specifically. It appears to be a regression, as it was definitely not this way in the previous release.
For example, I can have Scarlet as the active character, open Scarlet's inventory screen by pressing 'i' and look and a weapon in her inventory. It will have DEX 8 in RED, as if Scarlet does not meet that requirement, but if I look up at the box with Scarlet's Stats, she has a DEX of 9, so she meets the requirement, and the requirement should be grey, as it was in the previous version of the game.