Image inside a top bar

Hello, I have been trying to place image inside the Top bar. Unfortunately there is small gap (few pixels on both sides) on the right and left side which I can't get rid off. I was looking through all options with padding (image is bigger than required) and nothing works. When the same image is added as Top Bar background it fits perfectly but obviously is covered with Top bar image, so i can see piece of bottom one. If I remove Top Bar one, then background disappears. My goal is to have my image on the very top of the site in desktop and mobile mode. I am using premium updated yesterday. Thank you.