SVG Circle Fill Effects

Testing some different fill effects for SVG circles to find the best looking 'planet'.

HTML

<svg height="900" width="900">

    <circle cx="120" cy="120" r="100" fill="#005bff" />
    <text x="55" y="130">AppStore</text>
</svg>

CSS

body {
    background: #222228;
}

text {
    fill: #F0FFFF;
    font-family: "Arial";
    font-size: 32px;
}