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Hi once again ,  I have redone all the panels in light shades to try and mimic apple tv's latest GUI, but am stuck on one black background that i can't locate to replace with a lighter image. In the 3rd pic below i have scrolled down to the third row of icons, thats when the black BG becomes visible behind the white panel that i have set. Have tried all the black png's in the media folder but none of them seem to be this image? am wondering if its a line of text somewhere with "diffuse black" or similar ? 
pic 1. top row highlighted, pic2 second row highlighted , pic3 third row highlighted.