Koi fish pond wallpaper

The visual interface is Koi fish, with flat shapes and vibrant colors, swimming freely in the lake, creating smooth and graceful movements. Each Koi fish has its own unique color, ranging from red, orange, yellow, to white and black, which combine to form a complex and attractive color scheme. When they swim in the sunlight, the lines on the Koi fish's body appear clearly and create a magical effect, like delicate patterns on the water surface.