Hello, I am having an issue with a Nokie 3 phone that it just suddenly occured. Whenever I call someone, the letters right down the person I am calling, show which Sim Card I am using, now these used to be visible black, but now they are white, can I change them? And if not, is there any theme that you suggest me to use that changes only that part of display (the one when I call someone, one). Thanks in advance. P.s. I gotta find a solution asap.