Improvement

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 512 512"
>
    <linearGradient
        id="a"
        x1="255.999"
        x2="256"
        y1="474.401"
        y2="37.6"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#6c54a3" />
        <stop offset="1" stop-color="#00b1d2" />
    </linearGradient>
    <path
        fill="url(#a)"
        fill-rule="evenodd"
        d="M256 221.919a84.159 84.159 0 1 1 84.165-84.161A84.254 84.254 0 0 1 256 221.919zm162.009 171.114V458.4H363.33v-82.37a8 8 0 1 0-15.994 0v82.37H164.664v-82.37a8 8 0 1 0-15.994 0v82.37H93.991v-65.367c0-76.343 57.557-139.505 131.532-148.394l-16.984 122.5a7.881 7.881 0 0 0 1.793 6.237l39.535 47.159a8 8 0 0 0 12.266 0l39.535-47.159a7.881 7.881 0 0 0 1.793-6.237l-16.984-122.5c73.975 8.889 131.532 72.051 131.532 148.394zM270.2 243.819v-.241c-.567 0-1.133-.019-1.7-.019h-25.049c-.519 0-1.085.019-1.652.019v.241l-16.937 122L256 402.95l31.137-37.129-16.936-122zm85.958-106.061a100.159 100.159 0 1 0-139.694 92.011A166.1 166.1 0 0 0 78 393.033V466.4a8.006 8.006 0 0 0 8.02 8h339.962a8.006 8.006 0 0 0 8.02-8v-73.367a166.1 166.1 0 0 0-138.467-163.264 100.3 100.3 0 0 0 60.624-92.011zM23.7 154.449h19.952a8.013 8.013 0 0 1 8.02 8v91.541h40.574v-91.539a8.013 8.013 0 0 1 8.02-8h19.956l-48.263-66.3zm19.952 115.539h56.614a8 8 0 0 0 7.973-8v-91.54h27.693a8 8 0 0 0 6.464-12.7L78.422 69.85a8 8 0 0 0-12.926 0l-63.974 87.9a8 8 0 0 0 6.464 12.7h27.693v91.54a8 8 0 0 0 7.973 8zm424.7-115.539h19.909l-48.216-66.3-48.263 66.3h19.956a8.014 8.014 0 0 1 8.021 8v91.541h40.572v-91.539a8.014 8.014 0 0 1 8.021-8zm42.79 11.63a8.033 8.033 0 0 0-.66-8.327L446.5 69.85a8 8 0 0 0-12.926 0l-63.974 87.9a8 8 0 0 0 6.464 12.7h27.646v91.54a8 8 0 0 0 8.02 8h56.614a8 8 0 0 0 7.973-8v-91.54h27.693a8.044 8.044 0 0 0 7.128-4.371z"
    />
</svg>