Power Button

<svg
    xmlns="http://www.w3.org/2000/svg"
    width="512"
    height="512"
    viewBox="0 0 180 180"
>
    <linearGradient
        id="a"
        x1="90"
        x2="90"
        y2="180"
        gradientUnits="userSpaceOnUse"
    >
        <stop offset="0" stop-color="#26c3f3" />
        <stop offset="1" stop-color="#3c65af" />
    </linearGradient>
    <g>
        <g>
            <rect width="180" height="180" fill="url(#a)" rx="90" />
            <g fill="#fff">
                <path d="M84.44 40h11.11v44.74H84.44z" />
                <path
                    d="m115 46.69-5.56 9.62a38.89 38.89 0 1 1-38.88 0L65 46.69a50 50 0 1 0 50 0z"
                />
            </g>
        </g>
    </g>
</svg>