Flicking-Preview Padding - Wrapper width does not match with panel width

[jongmoon]

Description

When previewPadding specified, Padding values are added on width of wrapper(#wrapper). But the padding values are subtracted from panel(.eg-flick-panel) width.

It makes padding area looks different from what we expected.

Steps to check or reproduce

#wrapper {
  width:300px;
  height:300px;
}

 $("#wrapper").flicking({
    previewPadding: [ 50, 50 ],
    defaultIndex: 3
 });

Result

Why

Expected

Remove Unexpected Area above.
So Wrapper width(current: 300px) should match with panel width(200px).

[jongmoon]

Related Code:

http://codepen.io/jongmoon/pen/XdLbpr