/**
  * initializes Header Bar Color for WordPress Plugin Admin
  */
 public static function init()
 {
     if (!self::$initiated) {
         self::init_hooks();
         self::$initiated = true;
     }
 }
<div class="wrap">

  <div id="poststuff" class="skitt-welcome">
    <div id="post-body" class="metabox-holder columns-2">
      <div id="post-body-content" style="position: relative;">
        <div class="postbox">
          <h3>Header Bar Color Plugin</h3>
          <div class="inside">
            <img src="<?php 
echo Header_Bar_Color_WP_Admin::getPublicFile('/img/header-bar-color-samples.gif');
?>
" id="hebaco_sample_headers">
            <p>Header Bar Color is a WordPress plugin that lets you change the color of the browser's address bar when people visit your site.</p>
            <p>You can easily customize the color to match your site or brand, and any user visiting your site on a modern phone (including most new Android phones) will get a customized browsing experience.
            </p>
            <br class="clear">
          </div>
        </div>
      </div>

      <div id="postbox-container-1" class="postbox-container">
        <div class="postbox">
          <h3>Choose Header Color</h3>
          <div class="inside">
            <form method="post" action="options.php" id="hebacowp_settings_form">
              <?php 
// Render form using Settings API
settings_fields('hebacowp-section-settings');
do_settings_sections('hebacowp-settings');
submit_button();
?>