Shadows
From JSXGraph Wiki
The JavaScript code
<jsxgraph width="500" height="500">
var p1, p2, c, li,
board = JXG.JSXGraph.initBoard('jxgbox', {originX: 150, originY: 300, unitX: 25, unitY: 25});
p1 = board.createElement('point', [0, 0], {style:5,name:"A",fillColor:'blue', shadow:true});
p2 = board.createElement('point', [1, 4], {style:5,name:"B",fillColor:'blue', shadow:true});
c = board.createElement('circle',['A','B'], {shadow:true});
li = board.createElement('line',['A','B'], {shadow:true});
</jsxgraph>