This mod specifically changes the strings in the game so that all references to world and districts [within reason] are changed to suit a more Berry aspect. From buy mode objects to the tooltips that go across the screen, it changes them all.
All worlds but Glimmerbrook are changed. All districts in SanMy are the same. Batuu is unchanged. The Forgotten Grotto is also kept as the same name, but everything else is new and berry fun and more immersive to a Berry Sweet gameplay style.