Customizing your iPhone's Messages app is now possible with iOS 26, allowing you to set unique backgrounds for each conversation. This feature brings a personal touch that was previously missing, as Apple lagged behind competitors like WhatsApp and Telegram. To change a background, open a conversation, tap the contact or group icon at the top, and select the Backgrounds tab.

You can choose from Apple's animated options like Color, Sky, and Water, or use your own photos. The system may also suggest photos from your library. Keep in mind that everyone in the conversation sees the same background, and the feature requires both parties to use iMessage—SMS and RCS chats won't support it.

If you don't see the option, ensure your iPhone is updated to iOS 26 or later. You can also disable custom backgrounds entirely via Settings > Messages > Conversation Background toggle. This guide walks you through the simple steps to make your messaging experience more vibrant and personal.