There's only two appearance modes: light or dark. Dark is too dark, light is too bright. Also grey background colour to distinguish read from unread is unnecessary when you bold unread messages in a darker black. We don't need two contrasts it just competes with each other.
There's only two appearance modes: light or dark. Dark is too dark, light is too bright. Also grey background colour to distinguish read from unread is unnecessary when you bold unread messages in a darker black. We don't need two contrasts it just competes with each other.