If you are wondering how to change chat theme in Instagram, the process is simple and helps make your conversations more colorful and personalized. Instagram allows users to customize direct message chats with different themes, colors, and background styles. To change a chat theme, open Instagram, go to your messages, select a conversation, tap the chat name, and choose the Theme option. You can then pick from multiple designs available in the app. This feature improves the messaging experience by giving chats a stylish and unique appearance that matches your personality or mood.