Complex sentence: This strategy turned out to be so successful and recognizable to their brand that they phased out nearly all of their other Crayola line box designs to adapt to the gold medal format, which appeared on their packaging for the next 50-plus years.
Split into simpler sentences: This strategy turned out to be so successful and recognizable to their brand that they phased out nearly all of their other Crayola line box designs to adapt to the gold medal format. The gold medal branding appeared on their packaging for the next 50-plus years.