It was just very odd that that would be an answer to the crosses mentioned. A WTH moment.I assume it would have Dominant White and Silver, and would look like a white bird. Calling it "White Laced Silver" makes sense if you need to keep track of what genes it's got, because for breeding purposes it would be quite different than many other white chickens.
And the Kippenjungle calculator does call it "White Patterned Silver Laced," if I make a laced bird with Silver and Dominant White.
Then yes just trying to understand what it would be if there was such a pattern I came to the same conclusion on looks as well as what could be used to produce it.
The first cross would maybe have a very few very small black specks.