Thanks, somehow FrontSide is working for me (for the back). But I have updated the thread.
Unfortunately Anki does not seem to support
@media (prefers-color-scheme: dark) {
}
And instead uses the non-standard .night_mode CSS class. There is an issue about this: Selecting Night Mode should trigger `prefers-color-scheme: dark` so relevant CSS rules are applied - #2 by BartL If anyone knows a workaround, please do share.
