throbber.css

.tab-throbber[busy]::before {
	background-image: url("data:image/svg+xml;base64,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") !important;
	position: absolute !important;
	background-position: center !important;
	height: 16px !important;
	width: 16px !important;
	background-size: cover !important;
	background-repeat: no-repeat !important;
	animation: none !important;
}