Updated Annotation controller to assign "selected" class to buttons when they get clicked on, for use in custom css.
/*
* Segments Widget
*/
.Ldt-Segments-Segment {
position: absolute; margin-left: -1px; border: 1px solid #ffffff;
}
.Ldt-Segments-Position {
background: #fc00ff;
position: absolute;
top: -1px;
left: 0;
margin-left: -1px;
width: 2px;
bottom: -1px;
z-index: 80000;
}