Your Realms menu gradient? Yeah, it's off-center.
It might help to let us access the Realms menu during snapshots...
Note: This also happens when you have usable Realms in your menu. I just so happened to remove the Realm I was in so the name didn't show up.
- Open Minecraft 1.14
- Go to the Realms menu
- Express disgust towards the excellent graphical user interface