config/profilertoolbar.php
<?php defined('SYSPATH') or die('No direct script access.');
return array(
  // rendered panel data settings
  'html' => array(
    'enabled'        => true, // if set FALSE, panel don't be rendered on page

    'showTotalInfo'  => true, // show application time and memory peak usage
    'showSql'        => true, // show sql queries
    'showSqlExplain' => true, // show EXPLAIN for all SELECT queries
    'showCache'      => true, // show Cache
    'showVars'       => true, // show all global vars
    'showRoutes'     => true, // show routes
    'showIncFiles'   => true, // show all included files
    'showCustom'     => true, // show YOUR custom data

    'highlightSQL'   => true, // highlight SQL code
  ),

  // firebug data settings
  'firebug' => array(
    'enabled'        => true, // if set FALSE, panel don't be shown in firebug
    'showEverywhere' => true, // if set TRUE you don't need write ProfilerToolbar::firebug(); they will show in all Controllers

    'showTotalInfo'  => true, // show application time and memory peak usage
    'showSql'        => true, // show sql queries
    'showSqlExplain' => true, // show EXPLAIN for all SELECT queries
    'showCache'      => true, // show Cache
    'showVars'       => true, // show all global vars
    'showRoutes'     => true, // show routes
    'showIncFiles'   => true, // show all included files
    'showCustom'     => true, // show YOUR custom data

    'maxObjectDepth' => 5,  // Maximum depth to traverse objects
    'maxArrayDepth'  => 5,  // Maximum depth to traverse arrays
    'maxDepth'       => 10, // Maximum depth to traverse mixed arrays/objects
  ),

  // error page settings
  'errorPage' => array(
    'highlightSQL' => true, // highlight SQL code
    'highlightPHP' => true, // highlight PHP code
  ),

  // output vars format
  'format' => array(
    /**
     * possible values:
     *  s - seconds
     *  ms - milliseconds
     */
    'time'   => 's',
    /**
     * possible values:
     *  kb - kilobytes
     *  mb - megabytes
     */
    'memory' => 'kb'
  ),

);