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