[Feature request] Indicate read messages when prevent message seen indicator is toggled

[Terrariadlc]

When this feature is active, the conversation will have bolded white text indicating a new message (which you've already read). I think maybe a slight color change (or maybe a hex input) to show that Currently: Someone Message

With this option Someone

+ Message (read)

Another way could be to mark it as "seen" client side, which would make it just gray

[Mino260806]

I don't know if this is possible, but I doubt that we can find a universal hooking method for this because entire UI is obfuscated. Anyway I'll see what I can do

[pragyanone]

+1 much needed

[Joeeeeb5]

+1