The complete help menu is displayed in english.
And the "COMPOSE" and "HIDE PREVIEW" Label also.
Composer window positioning
Here's a bug I've noticed a little bit ago, not sure if this is is persona related or Nbb, but if you make the window smaller (heightwise), the composer will begin to get cut off and you can't see what you're typing.
Yeah this is intentional, I believe, as the composer is best used at a certain height and up. Any shorter, and the composer will slide downwards to obscure itself.