iOS Night Mode Exceptions?

Is there a way to define exceptions to the “Night Mode” view on Firefox for iOS? Some websites that are already dark to begin with (e.g. Daring Fireball; see attached image) look abjectly terrible in Night Mode, and it’s inconvenient to have to manually disable and re-enable Night Mode before and after visiting such websites. If defining exceptions is not currently possible, how could I suggest an exception list as a proposed feature or report the performance of Night Mode on already-dark websites as a bug? (In other words, could the heuristic for Night Mode be better elaborated to exclude websites or page elements where the text already has a brighter gamma than the background?) I’m not sure how to navigate support forums to suggest this as a feature, and I’m not sure if this would be appropriate to report as a bug on the source repository, so I would appreciate any guidance on this matter. Thanks!