<!-- By Sam Herbert (@sherb), for everyone. More @ http://goo.gl/7AJzbL -->
<svg width="44" height="44" viewBox="0 0 44 44" xmlns="http://www.w3.org/2000/svg" stroke="{{color}}">
<g fill="none" fill-rule="evenodd" stroke-width="2">
<circle cx="22" cy="22" r="1">
<animate attributeName="r"
begin="0s" dur="1.8s"
values="1; 20"
calcMode="spline"
keyTimes="0; 1"
keySplines="0.165, 0.84, 0.44, 1"
repeatCount="indefinite" />
<animate attributeName="stroke-opacity"
begin="0s" dur="1.8s"
values="1; 0"
calcMode="spline"
keyTimes="0; 1"
keySplines="0.3, 0.61, 0.355, 1"
repeatCount="indefinite" />
</circle>
<circle cx="22" cy="22" r="1">
<animate attributeName="r"
begin="-0.9s" dur="1.8s"
values="1; 20"
calcMode="spline"
keyTimes="0; 1"
keySplines="0.165, 0.84, 0.44, 1"
repeatCount="indefinite" />
<animate attributeName="stroke-opacity"
begin="-0.9s" dur="1.8s"
values="1; 0"
calcMode="spline"
keyTimes="0; 1"
keySplines="0.3, 0.61, 0.355, 1"
repeatCount="indefinite" />
</circle>
</g>
</svg>