Double paned ornamental panel or window with changeable opacity comprising a fillable margin, cartridges to provide {HEAD ~ colored material} into {TAIL ~ the margin}, and a wiper 
Double paned ornamental panel or window with changeable opacity comprising a fillable margin , cartridges to provide { HEAD ~ colored material } into { TAIL ~ the margin } , and a wiper
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH