One of buttons in request body schema have poor contrast in dark mode

[rebekaburnett]

There are contrast errors in dark mode on the buttons for "REQUEST BODY SCHEMA" in the middle area when there is a "One of" (see image). This is because it uses the main color for dark mode, which is selected to have contrast against a dark color, but it uses white with it instead. I wasn't able to find a safe workaround.