/**
 * @class Ext.grid.column.Check
 */
 
/**
 * @var {number}
 * Opacity of disabled CheckColumns
 */
$grid-checkcolumn-disabled-opacity: 0.3 !default;
 
$grid-checkcolumn-cell-padding: 
    max(ceil(($grid-row-height - $form-checkbox-size) / 2), 0)
    right($grid-cell-inner-padding)
    max(floor(($grid-row-height - $form-checkbox-size) / 2), 0)
    left($grid-cell-inner-padding)