document.on("change", "form.colors", (e,form) => { const hcolor = new Color(form.value.heartcolor); console.log(hcolor); document.$("lottie").lottie.update("Shape Layer 1.Ellipse 1.Fill 1","FillColor",hcolor); }); document.on("change", "form.stroke", (e,form) => { const w = form.value.strokewidth; document.$("lottie").lottie.update("**","StrokeWidth",w); }); FillColor: Red Green Blue StrokeWidth: