The filter cac/column/default_options filters the default options for a column instance.

You will probably only need this filter if you write an add-on for Admin Columns and you are introducing a new option.

Usage

/**
 * Filter the default options for a column instance, such as label and width
 *
 * @param array $default_options Default column options
 * @param CPAC_Column $column Column class instance
 */
function my_cac_column_default_options( $default_options ) {
    // Possibly modify $default_options
    return $default_options;
}
add_filter( 'cac/column/default_options', 'my_cac_column_default_options' );