1.10 high quality horizontal battle backgrounds（Does not include characters, skill effects of characters）.
2.High Resolution original images. There are 2 sizes for each background，support for full-screen phones and 4k （2436x1125,4096x2160）
Number of Textures:10 backgrounds, 2 sizes per background , 3 textures per size
Backgrounds Resolutions: 2436x1125 + 4096x2160 per background
Supported Development Platforms: