Change accent color in date selection dropdown in properties

I am unable to change the accent colour in the date selection dropdown box / date picker in properties. This does not match any of my selected interface or accent colours. It’s very minor problem, but is irritating.

I am using the Minimal Theme with Style Settings plugin on MacOS. Everything is up to date.

Is anyone able to help with a css snippet workaround? Not been able to find any solutions on the forum or elsewhere. Thanks in advance!

that UI component follows the OS