Fuel

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 512 512"
>
    <linearGradient
        id="a"
        x1="256"
        x2="256"
        y1="512"
        y2="0"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#c3ffe8" />
        <stop offset=".997" stop-color="#f0fff4" />
    </linearGradient>
    <linearGradient
        id="b"
        x1="256"
        x2="256"
        y1="407"
        y2="105"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#9cffac" />
        <stop offset="1" stop-color="#00b59c" />
    </linearGradient>
    <circle cx="256" cy="256" r="256" fill="url(#a)" />
    <path
        fill="url(#b)"
        d="M309.333 193.823h-26.667v-44.412c0-14.694 11.962-26.647 26.667-26.647 4.913 0 8.889-3.973 8.889-8.882S314.247 105 309.333 105c-24.505 0-44.444 19.925-44.444 44.412v44.412h-17.778v-26.647a8.88 8.88 0 0 0-8.889-8.882h-53.333c-4.913 0-8.889 3.973-8.889 8.882s3.976 8.882 8.889 8.882h8.889v19.401C183.453 199.139 176 208.906 176 220.471v159.882C176 395.047 187.962 407 202.667 407h106.667C324.038 407 336 395.047 336 380.353V220.471c0-14.694-11.962-26.648-26.667-26.648zM256 335.941c-14.705 0-26.667-11.953-26.667-26.647 0-11.354 13.533-32.155 19.349-40.578 3.333-4.805 11.302-4.805 14.635 0 5.816 8.422 19.349 29.223 19.349 40.578.001 14.694-11.961 26.647-26.666 26.647zm-8.889-26.638c0 4.892 3.984 8.874 8.889 8.874 4.896 0 8.889-3.981 8.889-8.882-.078-2.724-3.776-10.461-8.889-19.065-5.122 8.621-8.819 16.358-8.889 19.073z"
    />
</svg>