Rectangle

<svg
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    width="512"
    height="512"
    viewBox="0 0 300 300"
>
    <linearGradient
        id="a"
        x1="59.261"
        x2="236.56"
        y1="238.56"
        y2="61.261"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#107eff" />
        <stop offset="1" stop-color="#8f16ff" />
    </linearGradient>
    <path
        fill="url(#a)"
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