I am developing a windows phone application and I want to use some landscape pictures to improve the user interface. The UI consists of some checkboxes, textblocks and text boxes, it doesn't have to do with pictures at all. I have two questions:
First: Is it nice for a windows phone application to have pictures in the background or should I just leave it black?
Second: Where can I find pictures that are not copyright protected or pictures that I don't have to pay to get? I suppose just copying pictures from Google is not the right job.