Your definition of necessary and what most people consider the word necessary to mean seem to contradict each other. Here you seem to mean it as ‘nice to have’ whereas the actual definition is ‘required to be done, achieved or present; needed; essential’
Wikipedia has needed a plugin to be usable for a very long time. That Plugin gives you dark mode, on top of a bunch of other necessary features.
Your definition of necessary and what most people consider the word necessary to mean seem to contradict each other. Here you seem to mean it as ‘nice to have’ whereas the actual definition is ‘required to be done, achieved or present; needed; essential’
:p