Pokémon Special Backgrounds are souvenir backgrounds that appear on a Pokémon's summary page, commemorating the location or event where the Pokémon was caught. They are available to trainers worldwide and can be obtained from certain in-game events. These backgrounds cycle with the previous background on the Pokémon's summary page.
Special Backgrounds appear on a Pokémon's summary page after catching certain Pokémon during specific events. These backgrounds are souvenirs commemorating participation in real-world or in-game events and display an image related to the event or location. The Special Background cycles with the previous Pokémon summary page background, adding a unique touch to the caught Pokémon's page4.
Trainers first started receiving exclusive backgrounds in 2023, during real-world events such as Pokémon GO Tour and Pokémon GO Fest. These backgrounds were available for Pokémon caught during the events and served as souvenirs to commemorate the occasions.