How do you set alternating colors in the list of topics

[Canapin (Coin-coin le Canapin)]

이 주제에서 질문에 대한 답변을 찾을 수 있을지도 몰라요 :

다크 모드를 위한 특정 클래스가 없음

Continuing the discussion from How to add a specific body class for the dark (or light) mode?: Is this still the case? I’d like to add specific CSS for an external widget (a leaflet map) when dealing with a dark theme, is it still not possible to identify using just a CSS selector? Of course I can just create a Theme Component to apply the changes and assume the admin just adds that to the Dark Scheme, but that won’t switch automatically … (which is the current solution)