[I got no answers to my previous post] With page imposition, in luatex, background overrides text \setuppapersize[A4][A3,landscape] \setuparranging[2SIDE] % <--bug here \setupcolors[state=start] \definetextbackground[intro] [backgroundcolor=gray, backgroundoffset=.25cm, offset=.5cm, frame=off, location=paragraph, color=white] \definetextbackground[subintro] [backgroundcolor=texcolorfour, backgroundoffset=0pt, offset=0pt, frame=off, location=text, color=blue] \starttext \starttextbackground[intro] A rather common way to draw attention to a passage, is to add a background. In this chapter we will therefore discuss how to enhance your document with \starttextbackground [subintro] colorful areas that either or not follow the shape of your paragraph. \stoptextbackground\ Be warned: this chapter has so many backgrounds that you should consider wearing sunglasses. \stoptextbackground \dorecurse{5}{\input tufte} \stoptext Regards -- Diego Depaoli