I’ve tweaked some scoping options on the theme cookie which should hopefully address this. (There was a bug where it mattered what URL you were on when you used the theme-picker menu, in a way that it shouldn’t have.)
Correction: The setting is still not working correctly for me.
For instance, I have this page set to Dark Mode, refresh the page, and it stays in Dark Mode as expected. But then I set it to Default and it becomes white, refresh the page again, and it’s somehow back to Dark Mode.
I’ve tweaked some scoping options on the theme cookie which should hopefully address this. (There was a bug where it mattered what URL you were on when you used the theme-picker menu, in a way that it shouldn’t have.)
Correction: The setting is still not working correctly for me.
For instance, I have this page set to Dark Mode, refresh the page, and it stays in Dark Mode as expected. But then I set it to Default and it becomes white, refresh the page again, and it’s somehow back to Dark Mode.
Thanks. After your fix, I had to re-set the option to Dark Mode once more, but now the site seems to remember it across tabs.