A colored background means that the Pokémon can be found in this location in the specified game. A white background with a colored letter means that the Pokémon cannot be found here.
Hiker Kit speaks Italian in both the Japanese and English versions. In the Italian version he speaks Japanese.
A Pokémon Ranger mentions that they are looking for Poké Transfer Pokémon that have escaped, implying that at least some non-Unova Pokémon found in northeastern Unova are not native to the area.