Public Service Announcement
If you experience a problem with JJ2+ (or even vanilla JJ2) where a controller (or similar device) seems to constantly be moving your character or mouse without your intent, please visit this thread for information about how you can help diagnose this problem.

There is a problem: I downloaded HH18 and started the game, and the JJ2+ theme changed to Christmas Chronicles. I removed all the HH18 files, uninstalled and reinstalled JJ2+, and the theme is still that of Christmas Chronicles. It's the JJ2+ version from February 2018, so I'm sure it's not part of the patch. How do I revert the JJ2+ theme to the regular JJ2+ theme (the one where 1.23 got a picture of Jazz, Spaz and Devan in a cute style and 1.24 got one of Jazz, Spaz and Lori in an action movie style)?

Try changing the [General]TitleScreen setting in your plus.ini file/s, which accepts the values "1.23", "1.23+", "TSF+", "XMAS", "vanilla" and "random" (default).

That helped. Thanks!
However, only the title screen is fixed. The game menu is still holiday hare themed.
Oh, well...
Better than nothing.

That's because it's winter and J2O's background is snowing.

So you're saying it will revert to normal when the spring season begins?
Good.