Sprinkle top of bars with remaining 1/2 cup freeze-dried berries. In small microwavable bowl, melt chips uncovered on High in 30-second bursts, stirring between each, until melted and smooth. Drizzle over bars. Let stand at room temperature until firm, about 2 hours. Lift from pan by paper overhangs to remove. Cut into 4 rows by 4 rows.