Add themed icons for when moving dojox.Grid columns

[Shane O'Sullivan]

When moving columns in the Grid, arrow icons are placed above and below the point at which the column will be inserted. However, the icons used are not very attractive, and better icons, more suited to each theme, should be added

[bill]

The icons in ​http://download.dojotoolkit.org/release-1.7.1/dojo-release-1.7.1/dojox/grid/tests/test_grid_column_reorder.html look good to me.

And I can see from tundraGrid.css that it's using a theme specific arrow:

.tundra .dojoxGridArrowButtonNode {
        display: block !important;
        padding-left: 0px;
        float: right;
        background:url("../../../dijit/themes/tundra/images/spriteArrows.png") no-repeat left center;
        width: 7px;
        height: 1em;
        margin: 2px 4px 0px 5px;
}
.dj_ie6 .tundra .dojoxGridArrowButtonNode {
        background-image:url("../../../dijit/themes/tundra/images/spriteArrows.gif");
        margin-left: 0px;
}

and for claro:

.claro .dojoxGridArrowButtonNode {
        background:transparent url("../../../dijit/themes/claro/images/spriteArrows.png") no-repeat scroll left center;
        display:block;
        float:right;
        height:1em;
        margin:2px 4px 0 5px;
        padding-left:0;
        width:7px;
}
.claro .dojoxGridSortUp .dojoxGridArrowButtonNode {
        background-position:-21px 50%;
}

Since @nonken isn't active with dojo I'll close this.