org.eclipse.mylyn.help.ui/intro/css/tutorials.css

a#mylyn-query img {
	background-image: url(../../images/topiclabel/tu_query48.gif);
}

a#mylyn-query:hover img {
	background-image: url(../../images/topiclabel/tu_query48_hov.gif);
}

a#mylyn-task img {
	background-image: url(../../images/topiclabel/tu_task48.gif);
}

a#mylyn-task:hover img {
	background-image: url(../../images/topiclabel/tu_task48_hov.gif);
}