How to save config (theme) for a-shell (Use the same config every time you open it)

Currently every time I open a new a-shell my previous configuration with font size, font's color and background's color will not be applied, So I am asking if is there a way to save the config in order to apply it to each new shell, and to automatically load it every time you close a-shell and re-open it (without manually set the config again every time)