Note: all credit goes to Adople on the old forums and the pixelmon wiki
How To Unlock (most) PC Backgrounds
Forest - Unlocked by default Dark Brick - Unlocked by default Dark Plaid - Unlocked by default Dark Stripes - Unlocked by default Lavender Dreams - Find a Lavendar Fields biome Mountain Railway - Find a Mountainous biome Ocean Waves - Find a Ocean biome Aqua Adventure - Find a Ocean biome Red Desert - Find a Mesa biome Snow Peaks - Find a Cold Mountain biome Desert Mine - Find a Desert/Mesa/Volcano biome Ruby - Craft a Ruby Block Sapphire - Craft a Sapphire Block Amethyst - Craft an Amethyst Block Emerald - Craft an Emerald Block Crystal Caverns - Mine a Crystal Ore Aegislash - Catch an Aegislash Arceus - Catch an Arceus Chess - Catch a Zacian and Zamazenta Mystic Library - Interact with an Enchantment Table Great Outdoors - Feed your Pokémon Curry Cloudy Nights - Obtain the Sleepytime Mark
