I know that one is supposed to adore a relic of the True Cross in the same way as one does the Blessed Sacrament. When it is exposed one should genuflect. I have seen some recent photographs of a procession where it is carried under a red canopy, by priest wearing a red cope and holding it with red humeral veil. I just can't remember where.
I have asked before, does anyone know what the Rite should be for its Solemn Exposition?
If someone has the correct text and rubrics I will be very grateful.