Google has updated its Google Messages platform to enhance user customization options, allowing users to personalize their chat experience by changing the background and color of messaging bubbles for individual RCS chats as of late August. These new chat theme options are only visible to the user who sets them and require RCS messaging to be enabled. Users can customize their chats by accessing the "Chat theme" option in the app, which offers various color choices and background categories such as Animals, Architecture, Landscapes, Sunsets, and Space, as well as the option to select a personal photo.