Styling selected rows in a Repeater
The Repeater widget has an unusual default row selection indicator: a stylable rectangle at the left edge of the row. We're going for a more standard, recognizable look, like darkening the background of the mashup displayed in the selected row, or giving the selected row a border.
Has anyone had experience with doing this? I'm not even sure how I'd inform the selected row that it's selected, so that it could change its rendering.

