Colour the temperatures red/blue depending depending if neg/pos

See below (from https://www.yr.no/en/forecast/hourly-table/2-2988507/France/%C3%8Ele-de-France/Paris/Paris?i=0 on 2021-02-12) – it's very easy to see which days will be freezing and which merely cold due to the colours. Would be nice to have in this plugin.