If anything, this article is the best one i can find, and it's from the daily fail
https://www.dailymail.co.uk/sciencetech/article-5453665/Was-Cheddar-man-white-all.html
and even it says
"The test focused on 36 points of comparison in 16 genes, which are all linked to skin colour.
Dr Walsh and her colleagues analysed genetic data taken from more than 1,400 people.
They were mainly from Europe and the US, but also included people from Africa and Papua New Guinea.
Part of this data was used to train their model on how to recognise skin colour by looking at links with the 36 genetic markers.
The rest of the data was used to test how well the model could predict skin colour from DNA alone.
The model came up with 'black' or 'dark black' skin for Cheddar Man based on his DNA.
Some, particularly on the far-right, have questioned whether there was a political agenda behind the claims. "