When sorting on a column, if the column width is reduced enough, the
sort arrow can become hidden, which makes it difficult to recognize this
situation. The arrow should either always be visible or the heading
should be styled differently along with the sort direction arrow. For
example, making the sorted column's header backgound color blue or some
other color to indicate that it is sorted would help, even if the column
width is reduced to a minimum. Alternatively, add a button to "reset"
the U...