Opted to fill in the glass on this window pattern with some mis-dyed varigated I picked up from Forbidden Fiber Co awhile back. I thought it might come out speckled (the thread is!), like light hitting stained glass with uneven color. That is not what I got. I love what I got! It looks like fluorite! I am now deeply sad that I have a single one yard piece left, then it's gone forever! But at least I got this gorgeous window out of it!