Hi Preet, try playing around with easing. Hope that helps! https://greensock.com/docs/v3/Eases
useEffect(() => {
gsap.to(changeBg.current, {
scrollTrigger: {
trigger: changeBg.current,
markers: true,
scrub: 0.5,
start: "top 10%",
end: "bottom 90%",
},
backgroundColor: "black",
ease: "power4.in" // Add this line ?
})
})