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