Worked for me!
On another note: will closing the app using "X" and getting dark mode be implemented in the close future? I'm no software designer, but it would be nice if there was a heads up or I didn't have to browse the forums to know that I have to quit from the hamburger menu to get dark mode.
On Android, the app force closes/has a "restart now" feature that throws the app right into the change; that was a great implementation.