How can i change the font solor to white ?

Hey diefleischerei,

Here is the code you can put in Enfold > General Styling > Quick Css,  if it does not work, put into themes/enfold/css/custom.css

#av_section_2 .avia-testimonial p,
#av_section_2 .avia-testimonial .avia-testimonial-subtitle,
#av_section_2 .avia-testimonial .avia-testimonial-name  {
  color: #fff;
}

If you need further assistance please let us know.

Best regards,
Victoria