I have a microphone control that has a native icon, which is too small. When I change the font color to hide it (matching its background color), as I can't remove it, it only hides the word "Start" or "Stop". The undesirable small icon keeps there in white. Even when I select an image to be shown, the icon is there, getting confused with the image I selected (overlayed). What Can I do to finally get rid of it?

Thanks