I'm not sure why I didn't just update the data, instead of making manual changes to each place it popped up. Just updated the database, so it should not appear anywhere (except for one coin where カオ is part of the name).
With the new dark mode for adventure mode, it still shows the old background and light mode coloring (except for the text) right after you hit the switch. After you reload the page it shows the new background and new formatting.
FixedAlso, the little bar the shows up in the bottom right corner after you get points (like after a quiz)? The bar color is correct, but the new points that you just earned are still orange.