Reference

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 512 512"
>
    <linearGradient id="a">
        <stop offset="0" stop-color="#ff2f2b" />
        <stop offset="1" stop-color="#ff9ceb" />
    </linearGradient>
    <linearGradient
        id="c"
        x1="74.98"
        x2="437.018"
        y1="437.018"
        y2="74.98"
        gradientUnits="userSpaceOnUse"
        href="#a"
    />
    <radialGradient
        id="d"
        cx="256"
        cy="255.999"
        r="256"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#ff2f2b" />
        <stop offset="1" stop-color="#ff9ceb" stop-opacity="0" />
    </radialGradient>
    <linearGradient id="b">
        <stop offset="0" stop-color="#ffa9d4" />
        <stop offset=".295" stop-color="#ffc6e3" />
        <stop offset=".76" stop-color="#ffeff7" />
        <stop offset="1" stop-color="#fff" />
    </linearGradient>
    <linearGradient
        id="e"
        x1="1628.496"
        x2="1628.496"
        y1="-915.64"
        y2="-1614.926"
        gradientTransform="rotate(45 -968.472 -2191.99)"
        gradientUnits="userSpaceOnUse"
        href="#b"
    />
    <linearGradient
        id="f"
        x1="148.814"
        x2="587.593"
        y1="363.187"
        y2="-75.592"
        gradientUnits="userSpaceOnUse"
        href="#b"
    />
    <radialGradient
        id="g"
        cx="277.92"
        cy="234.081"
        r="231.852"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#ff9ceb" stop-opacity="0" />
        <stop offset=".163" stop-color="#ff9ae7" stop-opacity=".163" />
        <stop offset=".308" stop-color="#ff94dd" stop-opacity=".308" />
        <stop offset=".447" stop-color="#ff89ca" stop-opacity=".447" />
        <stop offset=".583" stop-color="#ff7bb1" stop-opacity=".583" />
        <stop offset=".715" stop-color="#ff688f" stop-opacity=".715" />
        <stop offset=".845" stop-color="#ff5167" stop-opacity=".845" />
        <stop offset=".971" stop-color="#ff3637" stop-opacity=".971" />
        <stop offset="1" stop-color="#ff2f2b" />
    </radialGradient>
    <linearGradient
        id="h"
        x1="10.489"
        x2="456.531"
        y1="501.511"
        y2="55.469"
        gradientUnits="userSpaceOnUse"
        href="#b"
    />
    <linearGradient
        id="i"
        x1="-198.39"
        x2="367.244"
        y1="710.39"
        y2="144.756"
        gradientUnits="userSpaceOnUse"
        href="#b"
    />
    <linearGradient
        id="j"
        x1="192.763"
        x2="416.294"
        y1="284.744"
        y2="61.214"
        gradientUnits="userSpaceOnUse"
        href="#a"
    />
    <linearGradient
        id="k"
        x1="222.67"
        x2="431.656"
        y1="254.844"
        y2="45.858"
        gradientUnits="userSpaceOnUse"
        href="#a"
    />
    <linearGradient
        id="l"
        x1="179.281"
        x2="467.304"
        y1="374.408"
        y2="86.385"
        gradientUnits="userSpaceOnUse"
        href="#a"
    />
    <circle cx="256" cy="256" r="256" fill="url(#c)" />
    <circle cx="256" cy="256" r="256" fill="url(#d)" />
    <path
        fill="url(#e)"
        d="M401.42 357.581c71.054-70.353 70.952-177.017-.271-247.273-70.326-70.751-176.535-70.613-246.732.273-56.838 56.741-68.849 137.021-32.933 202.871 3.904 7.268 4.712 15.691 2.325 23.305a3210.052 3210.052 0 0 0-15.422 50.557c-1.089 3.68-.464 7.865 1.95 11.193 3.36 4.631 9.063 6.668 14.021 5.202a3205.174 3205.174 0 0 0 50.885-15.519c7.613-2.388 16.035-1.58 23.302 2.323 65.85 35.919 146.134 23.909 202.875-32.932z"
    />
    <path
        fill="url(#f)"
        d="M277.92 88.018c-78.752.278-145.785 67.31-146.062 146.062.278 78.753 67.309 145.785 146.062 146.063 78.752-.278 145.784-67.31 146.062-146.063-.277-78.753-67.309-145.784-146.062-146.062z"
    />
    <path
        fill="url(#g)"
        d="M277.92 88.018c-78.752.278-145.785 67.31-146.062 146.062.278 78.753 67.309 145.785 146.062 146.063 78.752-.278 145.784-67.31 146.062-146.063-.277-78.753-67.309-145.784-146.062-146.062z"
    />
    <path
        fill="url(#h)"
        d="M393.233 234.08c-.138 62.743-52.571 115.176-115.312 115.313-62.743-.137-115.175-52.57-115.312-115.313.137-62.743 52.569-115.175 115.312-115.312 62.743.137 115.176 52.569 115.312 115.312z"
    />
    <path
        fill="url(#i)"
        d="M377.858 234.08c-.09 54.58-45.358 99.849-99.937 99.938-54.581-.089-99.848-45.357-99.937-99.938.089-54.58 45.355-99.848 99.937-99.937 54.58.089 99.848 45.356 99.937 99.937z"
    />
    <path
        fill="url(#j)"
        d="M327.842 199.554c.078 27.522-22.338 49.889-49.922 49.901-27.585-.013-49.998-22.38-49.922-49.901.1-27.519 22.515-50.026 49.922-50.036 27.406.01 49.824 22.517 49.922 50.036z"
    />
    <path
        fill="url(#k)"
        d="M293.292 218.708c-27.597-.017-49.962-22.354-49.851-49.911.006-1.89.128-3.753.339-5.589-9.654 9.142-15.744 22.051-15.782 36.345-.078 27.521 22.34 49.889 49.922 49.901 25.691-.008 46.891-19.427 49.616-44.32-8.922 8.406-20.975 13.58-34.244 13.574z"
    />
    <path
        fill="url(#l)"
        d="M224.147 264.761a30.508 30.508 0 0 0-21.076 8.316c14.265 26.91 42.503 45.568 74.85 45.566 32.348.001 60.584-18.655 74.85-45.565a30.511 30.511 0 0 0-21.077-8.317c-35.85.093-71.699.093-107.547 0z"
    />
</svg>