Moving your Pokémon Essentials project into the Generation 4 era—the style of Diamond, Pearl, Platinum , and HeartGold/SoulSilver —is one of the most popular ways to modernize the look of a fan game. While Essentials defaults to a Generation 3 (FireRed/LeafGreen) aesthetic, transitioning to Gen 4 tilesets offers a more detailed, vibrant, and versatile world-building experience. The Gen 4 Aesthetic: More Than Just Pixels
This is where 90% of users fail.
: A widely used set available on DeviantArt that focuses on natural landscapes. pokemon essentials gen 4 tileset