$grid-header-background-color: #373c4b !default;
$grid-header-over-background-color: #496085 !default;
$grid-header-background-gradient: 'glossy' !default;
$grid-header-over-background-gradient: 'glossy' !default;
$grid-header-color: #fff !default;
$grid-header-sort-icon-width: 15px !default;