The default Samsung messages app. It allows custom backgrounds for each text conversation. All apps I find only allow custom colors, no custom wallpaper. Eben Google messenger had this feature… Then they took it out and replaced it with pre selected ‘color themes’

I got an email from century link yesterday asking how my service was, when I had it disconnected 8 years ago, and I got one from apple today about my account, when I deleted it 10 years ago. They don’t care.