Velux Theme, How To Make Row Background Color Fill The Whole Width Of The Page



I'm currently customizing Velux Theme and having problem figuring out how to make the whole row background color to fill full width of the page.


When I set the Row backgroun color option, there's always a few white area left. The backgroun color didn't fill the full width like header and footer background color.




anybody can assist me on this issue?