[Support request] Home Default Template: How to change dark picture at top of page behind slider

[ShaunParticipant]

I don’t know how to change the dark picture in the background on home default template. the dark picture behind the slider. i’ve looked for hours and i can’t find where it is in the template so that i can change it.

Also, sticky menu background does not show when scrolling. so you can barely see the menu items when I scroll.