https://us.community.samsung.com/t5/Samsung-Apps-and-Services/Customize-chat-room-backgrounds/m-p/2496522#M80444 I'm using the stock texting on a S22 Ultra. I can change it on Saturday and by Monday it's back to dark grey. I even tried just using solid colors and the same thing happens... annoying Mon, 30 Jan 2023 23:54:45 GMT Anonymous 2023-01-30T23:54:45Z