LG L Fino turn off "Front Camera Light"

By default on LG L Fino when you try to take a picture with your front camer you get a small frame with preview and plain white background around. I've searched it on Google, but the only thing I found out is that it's called "Front camera light". Now I know that it's there because the front camera is just 0.3 MP, but the phone's owner insists that she wants the preview to be fullscreen. So my question is: can I turn the feature off? If so how can I do it?