Thanks for the suggestion, but don't you think I tried it first? All that is found is a lot of malware.
I'll try to make my own theme. Unfortunately the constructor is not very good because it doesn't remember the widgets when reloading. Quite a lot of bugs, it's pretty slow, and it is inconvenient to work on a smartphone because everything is so tiny. And yes ... I could make a theme in a car, but it's quite uneconomical because I would need a tank of fuel or 10 batteries.
Anyway, thank you all for your answers.