IMO 'Vera' handles the subject of people of colour well.
Not sure where this obsession about the race of the main character is coming from.
My comment was about the implausibility of the script. ie a lot of Vera makes no more sense than the concept that someone from Nigera waiting to take up a post with the Colonial service would set off for a strange village. ie Vera just happens to know the family connections of every murder victim and so on.
Also, in some ways the script was accurate because many Brits who had worked overseas has a far more enlightened attitude to people of colour than the little Englanders who had never travelled more than a few miles from their birthplace. That was why, in a stupid attempt to show welcome, the Henshall character didn't approach our hero until he had sorted out in his own mind where he originated from so he could greet him in the correct language.
I think what is interesting about all these different interpretations, the common factor is of course class.
I've never seen, all though there may have been one, an interpretation of an Agatha Christie plot where the lead character is working class, and probably has more difficulty getting the chocolate box villagers to even listen to what they have to say!