how to set different wallpapers for different chats on whatsapp?
['Open WhatsApp on your iPhone or Android device.', 'In WhatsApp, find and tap on "Settings."', 'Tap on "Chats."', 'Tap "Chat Wallpaper" on iPhone, or "Wallpaper" on Android.', 'Select an option:', 'Once you\'ve chosen a new wallpaper, you\'ll be directed to a "Wallpaper Preview" screen.']