Muscular strength is a measure of how much force a muscle can exert in a single effort, while muscle endurance describes the ability of muscles to contract repeatedly over time. Muscle strength and endurance develop together: that is, building muscle strength also helps build endurance and vice versa.
Maybe it depends on their ago. Like babies they stick to very bright/bold colors like YELLOW , PINK , WHITE. When they get older other colors start to stand out more