This looks like frost on windows. See designer and free patterns on Robert Kaufman site. Light metallic silver highlights
Trifecta pattern available separately here shown in 2nd image.
See patterns here:
https://www.robertkaufman.com/quilting/quilts_patterns/lake_views/#color:1
https://www.robertkaufman.com/quilting/quilts_patterns/trifecta_3448/#color:1