sales@fmgizmo.com

• 
  
  
  
  FM Gizmo
  
  Field Marketing Made Easier Than Ever
  Accelerate your business
  
  Features that put you ahead of your competitors
  Entirely Personalized
  
  Tailor-made solutions to optimise your growth
  Better Business Results
  
  Interactive Live Dashboards on any device
  Impress your customers
  
  Quick reporting for improved decision making

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FM Gizmo

 

Field Marketing Made Easier Than Ever

 

 

 

 

What is FM Gizmo?

FMGizmo is an easy-to-use cloud-based system with a user-friendly mobile app for the field team. It helps you in managing Field Marketing Activities efficiently.

All data captured by your field team is uploaded to the FMGizmo Cloud instantly. No hassles of paperwork, emails or messaging! FM Gizmo provides interactive dashboards and customised reports that make you shine in front of your Clients. Now, you and your Clients can not only monitor the activity in real-time but also take corrective actions swiftly, this ensures your activity is always aligned with the campaign objective.

Switch to FM Gizmo today and streamline your activity management process. Spend more time expanding your business rather than be consumed by the administrative tasks.

FM Gizmo Mobile App

 

User friendly

Our easy-to-use mobile app ensures your field teams can effortlessly adapt to FM Gizmo  

Zero Paperwork

With cloud technology, every significant detail recorded in the mobile app is uploaded to our reliable and secured cloud eliminating the need for paperwork.

Geotagged

Information collected on the FM Gizmo App is Timestamped and Geotagged

Collect, Analyze, Deliver

Collect your information in Real-time, Evaluate field operations and Deliver better results

Mobile Verification

FM Gizmo offers verification of Mobile numbers collected during the activity. This ensures the authenticity of data and limits the need for data auditing

Realtime

Data is collected and sent to the cloud in real-time. This ensures close monitoring of the activities undertaken.

 

The FM Gizmo Cloud

 

Interactive Dashboards

Wow your clients by giving them Interactive Dashboards as per their needs!

Customizable Reports

FM Gizmo offers completely customizable reporting to meet your exact needs.

Realtime Data

FM Gizmo delivers data in real-time allowing you to give timely feedback to your team and take corrective decisions instantly.

Workflow Integration

Integrate your routine processes directly into FM Gizmo. FM Gizmo is equipped with workflows like Recce thru Implementation, Accept-Reject-Redo and many more.

Reliable

With a well-managed service platform, FM Gizmo is much more reliable and consistent than any in-house IT infrastructure.

Scalable

You can easily increase or decrease your cloud capacity according to your requirement. You only pay for what you need.

Salient Features

 

Realtime Data

Easy to Use

Geotagged

 

Customizable

Reliable

Scalable

 

How does it work?

A Simple 5 step process

Choose your activity

Retail Seeding, Rural Market Activations, Branding, Merchandizing, BTL, Haat etc.

Create your team

Create logins for your field team and their managers. Optionally you can also assign the route plan for your field team.

Customize the app to match your requirements

Choose what data is required to be collected and you are ready to start your activity.

Choose your dashboards

Choose from our predefined dashboards templates or tell us what you need and we will create one for you.

Get set go

You are ready to start your activity and make your field activity management easier than ever.

EXPAND YOUR HORIZONS

Switch to Working Wisely

 

WATCH VIDEO

About Us

Solutions that Work

Whether you are a start-up or an MNC, we believe in providing tailor-made solutions that will give you a decisive edge over your competition

Experience Matters

With our extensive expertise in market research  and related mobility solutions, we offer you a platform that delivers

 

Cost Effective

FM Gizmo is a cost-effective solution that also brings down your activity management overheads considerably

 

Strong Support

Our dedicated support team ensures your field team can reach out to us if they ever face any difficulties on the field

 

 

So why wait, order FM Gizmo now and switch to working wisely!

Contact Us

About FM Gizmo

FM Gizmo is a one-stop field marketing solution.

FM Gizmo's customizability can help you fulfil all your field activity needs.

Order FM Gizmo now and Switch to working wisely.

Get In Touch

912, Opal Square, Wagle Estate, Thane(W) - 400604, Maharashtra

sales@fmgizmo.com

©2026 A technology solution powered by OV Information Services (OVIS).

<?php
/**
 * @file
 * Allows users to change the color scheme of themes.
 */

/**
 * Implements hook_help().
 */
function color_help($path, $arg) {
  switch ($path) {
    case 'admin/help#color':
      $output = '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('The Color module allows users with the <em>Administer site configuration</em> permission to quickly and easily change the color scheme of themes that have been built to be compatible with it. For more information, see the online handbook entry for <a href="@color">Color module</a>.', array('@color' => 'http://drupal.org/documentation/modules/color')) . '</p>';
      $output .= '<h3>' . t('Uses') . '</h3>';
      $output .= '<dl>';
      $output .= '<dt>' . t('Changing colors') . '</dt>';
      $output .= '<dd>' . t("Using the Color module allows you to easily change the color of links, backgrounds, text, and other theme elements. To change the color settings for a compatible theme, select the <em>Settings</em> link for your theme on the <a href='@configure'>Themes administration page</a>. If you don't see a color picker on that page, then your theme is not compatible with the color module. If you are sure that the theme does indeed support the color module, but the color picker does not appear, then <a href='@troubleshoot'>follow these troubleshooting procedures</a>.", array('@configure' => url('admin/appearance'), '@troubleshoot' => 'http://drupal.org/node/109457')) . '</dd>';
      $output .= '<dd>' . t("The Color module saves a modified copy of the theme's specified stylesheets in the files directory. This means that if you make any manual changes to your theme's stylesheet, <em>you must save your color settings again, even if they haven't changed</em>. This step is required because the module stylesheets (in the files directory) need to be recreated to include your changes.") . '</dd>';
      $output .= '</dl>';
      return $output;
  }
}

/**
 * Implements hook_theme().
 */
function color_theme() {
  return array(
    'color_scheme_form' => array(
      'render element' => 'form',
    ),
  );
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function color_form_system_theme_settings_alter(&$form, &$form_state) {
  if (isset($form_state['build_info']['args'][0]) && ($theme = $form_state['build_info']['args'][0]) && color_get_info($theme) && function_exists('gd_info')) {
    $form['color'] = array(
      '#type' => 'fieldset',
      '#title' => t('Color scheme'),
      '#weight' => -1,
      '#attributes' => array('id' => 'color_scheme_form'),
      '#theme' => 'color_scheme_form',
    );
    $form['color'] += color_scheme_form($form, $form_state, $theme);
    $form['#validate'][] = 'color_scheme_form_validate';
    $form['#submit'][] = 'color_scheme_form_submit';
  }
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function color_form_system_themes_alter(&$form, &$form_state) {
  _color_theme_select_form_alter($form, $form_state);
}

/**
 * Helper for hook_form_FORM_ID_alter() implementations.
 */
function _color_theme_select_form_alter(&$form, &$form_state) {
  // Use the generated screenshot in the theme list.
  $themes = list_themes();
  foreach (element_children($form) as $theme) {
    if ($screenshot = variable_get('color_' . $theme . '_screenshot')) {
      if (isset($form[$theme]['screenshot'])) {
        $form[$theme]['screenshot']['#markup'] = theme('image', array('path' => $screenshot, 'title' => '', 'attributes' => array('class' => array('screenshot'))));
      }
    }
  }
}

/**
 * Replaces style sheets with color-altered style sheets.
 *
 * A theme that supports the color module should call this function from its
 * THEME_process_html() function, so that the correct style sheets are
 * included when html.tpl.php is rendered.
 *
 * @see theme()
 */
function _color_html_alter(&$vars) {
  global $theme_key;
  $themes = list_themes();

  // Override stylesheets.
  $color_paths = variable_get('color_' . $theme_key . '_stylesheets', array());
  if (!empty($color_paths)) {

    foreach ($themes[$theme_key]->stylesheets['all'] as $base_filename => $old_path) {
      // Loop over the path array with recolored CSS files to find matching
      // paths which could replace the non-recolored paths.
      foreach ($color_paths as $color_path) {
        // Color module currently requires unique file names to be used,
        // which allows us to compare different file paths.
        if (drupal_basename($old_path) == drupal_basename($color_path)) {
          // Replace the path to the new css file.
          // This keeps the order of the stylesheets intact.
          $vars['css'][$old_path]['data'] = $color_path;
        }
      }
    }

    $vars['styles'] = drupal_get_css($vars['css']);
  }
}

/**
 * Replaces the logo with a color-altered logo.
 *
 * A theme that supports the color module should call this function from its
 * THEME_process_page() function, so that the correct logo is included when
 * page.tpl.php is rendered.
 *
 * @see theme()
 */
function _color_page_alter(&$vars) {
  global $theme_key;

  // Override logo.
  $logo = variable_get('color_' . $theme_key . '_logo');
  if ($logo && $vars['logo'] && preg_match('!' . $theme_key . '/logo.png$!', $vars['logo'])) {
    $vars['logo'] = file_create_url($logo);
  }
}

/**
 * Retrieves the Color module information for a particular theme.
 */
function color_get_info($theme) {
  static $theme_info = array();

  if (isset($theme_info[$theme])) {
    return $theme_info[$theme];
  }

  $path = drupal_get_path('theme', $theme);
  $file = DRUPAL_ROOT . '/' . $path . '/color/color.inc';
  if ($path && file_exists($file)) {
    include $file;
    $theme_info[$theme] = $info;
    return $info;
  }
}

/**
 * Retrieves the color palette for a particular theme.
 */
function color_get_palette($theme, $default = FALSE) {
  // Fetch and expand default palette.
  $info = color_get_info($theme);
  $palette = $info['schemes']['default']['colors'];

  // Load variable.
  return $default ? $palette : variable_get('color_' . $theme . '_palette', $palette);
}

/**
 * Form constructor for the color configuration form for a particular theme.
 *
 * @param $theme
 *   The machine name of the theme whose color settings are being configured.
 *
 * @see color_scheme_form_validate()
 * @see color_scheme_form_submit()
 * @ingroup forms
 */
function color_scheme_form($complete_form, &$form_state, $theme) {
  $base = drupal_get_path('module', 'color');
  $info = color_get_info($theme);

  $info['schemes'][''] = array('title' => t('Custom'), 'colors' => array());
  $color_sets = array();
  $schemes = array();
  foreach ($info['schemes'] as $key => $scheme) {
    $color_sets[$key] = $scheme['title'];
    $schemes[$key] = $scheme['colors'];
    $schemes[$key] += $info['schemes']['default']['colors'];
  }

  // See if we're using a predefined scheme.
  // Note: we use the original theme when the default scheme is chosen.
  $current_scheme = variable_get('color_' . $theme . '_palette', array());
  foreach ($schemes as $key => $scheme) {
    if ($current_scheme == $scheme) {
      $scheme_name = $key;
      break;
    }
  }
  if (empty($scheme_name)) {
    if (empty($current_scheme)) {
      $scheme_name = 'default';
    }
    else {
      $scheme_name = '';
    }
  }

  // Add scheme selector.
  $form['scheme'] = array(
    '#type' => 'select',
    '#title' => t('Color set'),
    '#options' => $color_sets,
    '#default_value' => $scheme_name,
    '#attached' => array(
      // Add Farbtastic color picker.
      'library' => array(
        array('system', 'farbtastic'),
      ),
      // Add custom CSS.
      'css' => array(
        $base . '/color.css' => array(),
      ),
      // Add custom JavaScript.
      'js' => array(
        $base . '/color.js',
        array(
          'data' => array(
            'color' => array(
              'reference' => color_get_palette($theme, TRUE),
              'schemes' => $schemes,
            ),
            'gradients' => $info['gradients'],
          ),
          'type' => 'setting',
        ),
      ),
    ),
  );

  // Add palette fields.
  $palette = color_get_palette($theme);
  $names = $info['fields'];
  $form['palette']['#tree'] = TRUE;
  foreach ($palette as $name => $value) {
    if (isset($names[$name])) {
      $form['palette'][$name] = array(
        '#type' => 'textfield',
        '#title' => check_plain($names[$name]),
        '#value_callback' => 'color_palette_color_value',
        '#default_value' => $value,
        '#size' => 8,
      );
    }
  }
  $form['theme'] = array('#type' => 'value', '#value' => $theme);
  $form['info'] = array('#type' => 'value', '#value' => $info);

  return $form;
}

/**
 * Returns HTML for a theme's color form.
 *
 * @param $variables
 *   An associative array containing:
 *   - form: A render element representing the form.
 *
 * @ingroup themeable
 */
function theme_color_scheme_form($variables) {
  $form = $variables['form'];

  $theme = $form['theme']['#value'];
  $info = $form['info']['#value'];
  $path = drupal_get_path('theme', $theme) . '/';
  drupal_add_css($path . $info['preview_css']);

  $preview_js_path = isset($info['preview_js']) ? $path . $info['preview_js'] : drupal_get_path('module', 'color') . '/' . 'preview.js';
  // Add the JS at a weight below color.js.
  drupal_add_js($preview_js_path, array('weight' => -1));

  $output  = '';
  $output .= '<div class="color-form clearfix">';
  // Color schemes
  $output .= drupal_render($form['scheme']);
  // Palette
  $output .= '<div id="palette" class="clearfix">';
  foreach (element_children($form['palette']) as $name) {
    $output .= drupal_render($form['palette'][$name]);
  }
  $output .= '</div>';
  // Preview
  $output .= drupal_render_children($form);
  $output .= '<h2>' . t('Preview') . '</h2>';
  // Attempt to load preview HTML if the theme provides it.
  $preview_html_path = DRUPAL_ROOT . '/' . (isset($info['preview_html']) ? drupal_get_path('theme', $theme) . '/' . $info['preview_html'] : drupal_get_path('module', 'color') . '/preview.html');
  $output .= file_get_contents($preview_html_path);
  // Close the wrapper div.
  $output .= '</div>';

  return $output;
}

/**
 * Determines the value for a palette color field.
 *
 * @param $element
 *   The form element whose value is being populated.
 * @param $input
 *   The incoming input to populate the form element. If this is FALSE,
 *   the element's default value should be returned.
 * @param $form_state
 *   A keyed array containing the current state of the form.
 *
 * @return
 *   The data that will appear in the $form_state['values'] collection for this
 *   element. Return nothing to use the default.
 */
function color_palette_color_value($element, $input = FALSE, $form_state = array()) {
  // If we suspect a possible cross-site request forgery attack, only accept
  // hexadecimal CSS color strings from user input, to avoid problems when this
  // value is used in the JavaScript preview.
  if ($input !== FALSE) {
    // Start with the provided value for this textfield, and validate that if
    // necessary, falling back on the default value.
    $value = form_type_textfield_value($element, $input, $form_state);
    if (!$value || !isset($form_state['complete form']['#token']) || color_valid_hexadecimal_string($value) || drupal_valid_token($form_state['values']['form_token'], $form_state['complete form']['#token'])) {
      return $value;
    }
    else {
      return $element['#default_value'];
    }
  }
}

/**
 * Determines if a hexadecimal CSS color string is valid.
 *
 * @param $color
 *   The string to check.
 *
 * @return
 *   TRUE if the string is a valid hexadecimal CSS color string, or FALSE if it
 *   isn't.
 */
function color_valid_hexadecimal_string($color) {
  return preg_match('/^#([a-f0-9]{3}){1,2}$/iD', $color);
}

/**
 * Form validation handler for color_scheme_form().
 *
 * @see color_scheme_form_submit()
 */
function color_scheme_form_validate($form, &$form_state) {
  // Only accept hexadecimal CSS color strings to avoid XSS upon use.
  foreach ($form_state['values']['palette'] as $key => $color) {
    if (!color_valid_hexadecimal_string($color)) {
      form_set_error('palette][' . $key, t('%name must be a valid hexadecimal CSS color value.', array('%name' => $form['color']['palette'][$key]['#title'])));
    }
  }
}

/**
 * Form submission handler for color_scheme_form().
 *
 * @see color_scheme_form_validate()
 */
function color_scheme_form_submit($form, &$form_state) {
  // Get theme coloring info.
  if (!isset($form_state['values']['info'])) {
    return;
  }
  $theme = $form_state['values']['theme'];
  $info = $form_state['values']['info'];

  // Resolve palette.
  $palette = $form_state['values']['palette'];
  if ($form_state['values']['scheme'] != '') {
    foreach ($palette as $key => $color) {
      if (isset($info['schemes'][$form_state['values']['scheme']]['colors'][$key])) {
        $palette[$key] = $info['schemes'][$form_state['values']['scheme']]['colors'][$key];
      }
    }
    $palette += $info['schemes']['default']['colors'];
  }

  // Make sure enough memory is available, if PHP's memory limit is compiled in.
  if (function_exists('memory_get_usage')) {
    // Fetch source image dimensions.
    $source = drupal_get_path('theme', $theme) . '/' . $info['base_image'];
    list($width, $height) = getimagesize($source);

    // We need at least a copy of the source and a target buffer of the same
    // size (both at 32bpp).
    $required = $width * $height * 8;
    // We intend to prevent color scheme changes if there isn't enough memory
    // available.  memory_get_usage(TRUE) returns a more accurate number than
    // memory_get_usage(), therefore we won't inadvertently reject a color
    // scheme change based on a faulty memory calculation.
    $usage = memory_get_usage(TRUE);
    $memory_limit = ini_get('memory_limit');
    $size = parse_size($memory_limit);
    if (!drupal_check_memory_limit($usage + $required, $memory_limit)) {
      drupal_set_message(t('There is not enough memory available to PHP to change this theme\'s color scheme. You need at least %size more. Check the <a href="@url">PHP documentation</a> for more information.', array('%size' => format_size($usage + $required - $size), '@url' => 'http://www.php.net/manual/ini.core.php#ini.sect.resource-limits')), 'error');
      return;
    }
  }

  // Delete old files.
  foreach (variable_get('color_' . $theme . '_files', array()) as $file) {
    @drupal_unlink($file);
  }
  if (isset($file) && $file = dirname($file)) {
    @drupal_rmdir($file);
  }

  // Don't render the default colorscheme, use the standard theme instead.
  if (implode(',', color_get_palette($theme, TRUE)) == implode(',', $palette)) {
    variable_del('color_' . $theme . '_palette');
    variable_del('color_' . $theme . '_stylesheets');
    variable_del('color_' . $theme . '_logo');
    variable_del('color_' . $theme . '_files');
    variable_del('color_' . $theme . '_screenshot');
    return;
  }

  // Prepare target locations for generated files.
  $id = $theme . '-' . substr(hash('sha256', serialize($palette) . microtime()), 0, 8);
  $paths['color'] = 'public://color';
  $paths['target'] = $paths['color'] . '/' . $id;
  foreach ($paths as $path) {
    file_prepare_directory($path, FILE_CREATE_DIRECTORY);
  }
  $paths['target'] = $paths['target'] . '/';
  $paths['id'] = $id;
  $paths['source'] = drupal_get_path('theme', $theme) . '/';
  $paths['files'] = $paths['map'] = array();

  // Save palette and logo location.
  variable_set('color_' . $theme . '_palette', $palette);
  variable_set('color_' . $theme . '_logo', $paths['target'] . 'logo.png');

  // Copy over neutral images.
  foreach ($info['copy'] as $file) {
    $base = drupal_basename($file);
    $source = $paths['source'] . $file;
    $filepath = file_unmanaged_copy($source, $paths['target'] . $base);
    $paths['map'][$file] = $base;
    $paths['files'][] = $filepath;
  }

  // Render new images, if image has been provided.
  if ($info['base_image']) {
    _color_render_images($theme, $info, $paths, $palette);
  }

  // Rewrite theme stylesheets.
  $css = array();
  foreach ($info['css'] as $stylesheet) {
    // Build a temporary array with LTR and RTL files.
    $files = array();
    if (file_exists($paths['source'] . $stylesheet)) {
      $files[] = $stylesheet;

      $rtl_file = str_replace('.css', '-rtl.css', $stylesheet);
      if (file_exists($paths['source'] . $rtl_file)) {
        $files[] = $rtl_file;
      }
    }

    foreach ($files as $file) {
      // Aggregate @imports recursively for each configured top level CSS file
      // without optimization. Aggregation and optimization will be
      // handled by drupal_build_css_cache() only.
      $style = drupal_load_stylesheet($paths['source'] . $file, FALSE);

      // Return the path to where this CSS file originated from, stripping
      // off the name of the file at the end of the path.
      $base = base_path() . dirname($paths['source'] . $file) . '/';
      _drupal_build_css_path(NULL, $base);

      // Prefix all paths within this CSS file, ignoring absolute paths.
      $style = preg_replace_callback('/url\([\'"]?(?![a-z]+:|\/+)([^\'")]+)[\'"]?\)/i', '_drupal_build_css_path', $style);

      // Rewrite stylesheet with new colors.
      $style = _color_rewrite_stylesheet($theme, $info, $paths, $palette, $style);
      $base_file = drupal_basename($file);
      $css[] = $paths['target'] . $base_file;
      _color_save_stylesheet($paths['target'] . $base_file, $style, $paths);
    }
  }

  // Maintain list of files.
  variable_set('color_' . $theme . '_stylesheets', $css);
  variable_set('color_' . $theme . '_files', $paths['files']);
}

/**
 * Rewrites the stylesheet to match the colors in the palette.
 */
function _color_rewrite_stylesheet($theme, &$info, &$paths, $palette, $style) {
  $themes = list_themes();
  // Prepare color conversion table.
  $conversion = $palette;
  foreach ($conversion as $k => $v) {
    $conversion[$k] = drupal_strtolower($v);
  }
  $default = color_get_palette($theme, TRUE);

  // Split off the "Don't touch" section of the stylesheet.
  $split = "Color Module: Don't touch";
  if (strpos($style, $split) !== FALSE) {
    list($style, $fixed) = explode($split, $style);
  }

  // Find all colors in the stylesheet and the chunks in between.
  $style = preg_split('/(#[0-9a-f]{6}|#[0-9a-f]{3})/i', $style, -1, PREG_SPLIT_DELIM_CAPTURE);
  $is_color = FALSE;
  $output = '';
  $base = 'base';

  // Iterate over all the parts.
  foreach ($style as $chunk) {
    if ($is_color) {
      $chunk = drupal_strtolower($chunk);
      // Check if this is one of the colors in the default palette.
      if ($key = array_search($chunk, $default)) {
        $chunk = $conversion[$key];
      }
      // Not a pre-set color. Extrapolate from the base.
      else {
        $chunk = _color_shift($palette[$base], $default[$base], $chunk, $info['blend_target']);
      }
    }
    else {
      // Determine the most suitable base color for the next color.

      // 'a' declarations. Use link.
      if (preg_match('@[^a-z0-9_-](a)[^a-z0-9_-][^/{]*{[^{]+$@i', $chunk)) {
        $base = 'link';
      }
      // 'color:' styles. Use text.
      elseif (preg_match('/(?<!-)color[^{:]*:[^{#]*$/i', $chunk)) {
        $base = 'text';
      }
      // Reset back to base.
      else {
        $base = 'base';
      }
    }
    $output .= $chunk;
    $is_color = !$is_color;
  }
  // Append fixed colors segment.
  if (isset($fixed)) {
    $output .= $fixed;
  }

  // Replace paths to images.
  foreach ($paths['map'] as $before => $after) {
    $before = base_path() . $paths['source'] . $before;
    $before = preg_replace('`(^|/)(?!../)([^/]+)/../`', '$1', $before);
    $output = str_replace($before, $after, $output);
  }

  return $output;
}

/**
 * Saves the rewritten stylesheet to disk.
 */
function _color_save_stylesheet($file, $style, &$paths) {
  $filepath = file_unmanaged_save_data($style, $file, FILE_EXISTS_REPLACE);
  $paths['files'][] = $filepath;

  // Set standard file permissions for webserver-generated files.
  drupal_chmod($file);
}

/**
 * Renders images that match a given palette.
 */
function _color_render_images($theme, &$info, &$paths, $palette) {
  // Prepare template image.
  $source = $paths['source'] . '/' . $info['base_image'];
  $source = imagecreatefrompng($source);
  $width = imagesx($source);
  $height = imagesy($source);

  // Prepare target buffer.
  $target = imagecreatetruecolor($width, $height);
  imagealphablending($target, TRUE);

  // Fill regions of solid color.
  foreach ($info['fill'] as $color => $fill) {
    imagefilledrectangle($target, $fill[0], $fill[1], $fill[0] + $fill[2], $fill[1] + $fill[3], _color_gd($target, $palette[$color]));
  }

  // Render gradients.
  foreach ($info['gradients'] as $gradient) {
    // Get direction of the gradient.
    if (isset($gradient['direction']) && $gradient['direction'] == 'horizontal') {
      // Horizontal gradient.
      for ($x = 0; $x < $gradient['dimension'][2]; $x++) {
        $color = _color_blend($target, $palette[$gradient['colors'][0]], $palette[$gradient['colors'][1]], $x / ($gradient['dimension'][2] - 1));
        imagefilledrectangle($target, ($gradient['dimension'][0] + $x), $gradient['dimension'][1], ($gradient['dimension'][0] + $x + 1), ($gradient['dimension'][1] + $gradient['dimension'][3]), $color);
      }
    }
    else {
      // Vertical gradient.
      for ($y = 0; $y < $gradient['dimension'][3]; $y++) {
        $color = _color_blend($target, $palette[$gradient['colors'][0]], $palette[$gradient['colors'][1]], $y / ($gradient['dimension'][3] - 1));
        imagefilledrectangle($target, $gradient['dimension'][0], $gradient['dimension'][1] + $y, $gradient['dimension'][0] + $gradient['dimension'][2], $gradient['dimension'][1] + $y + 1, $color);
      }
    }
  }

  // Blend over template.
  imagecopy($target, $source, 0, 0, 0, 0, $width, $height);

  // Clean up template image.
  imagedestroy($source);

  // Cut out slices.
  foreach ($info['slices'] as $file => $coord) {
    list($x, $y, $width, $height) = $coord;
    $base = drupal_basename($file);
    $image = drupal_realpath($paths['target'] . $base);

    // Cut out slice.
    if ($file == 'screenshot.png') {
      $slice = imagecreatetruecolor(150, 90);
      imagecopyresampled($slice, $target, 0, 0, $x, $y, 150, 90, $width, $height);
      variable_set('color_' . $theme . '_screenshot', $image);
    }
    else {
      $slice = imagecreatetruecolor($width, $height);
      imagecopy($slice, $target, 0, 0, $x, $y, $width, $height);
    }

    // Save image.
    imagepng($slice, $image);
    imagedestroy($slice);
    $paths['files'][] = $image;

    // Set standard file permissions for webserver-generated files
    drupal_chmod($image);

    // Build before/after map of image paths.
    $paths['map'][$file] = $base;
  }

  // Clean up target buffer.
  imagedestroy($target);
}

/**
 * Shifts a given color, using a reference pair and a target blend color.
 *
 * Note: this function is significantly different from the JS version, as it
 * is written to match the blended images perfectly.
 *
 * Constraint: if (ref2 == target + (ref1 - target) * delta) for some fraction
 * delta then (return == target + (given - target) * delta).
 *
 * Loose constraint: Preserve relative positions in saturation and luminance
 * space.
 */
function _color_shift($given, $ref1, $ref2, $target) {
  // We assume that ref2 is a blend of ref1 and target and find
  // delta based on the length of the difference vectors.

  // delta = 1 - |ref2 - ref1| / |white - ref1|
  $target = _color_unpack($target, TRUE);
  $ref1 = _color_unpack($ref1, TRUE);
  $ref2 = _color_unpack($ref2, TRUE);
  $numerator = 0;
  $denominator = 0;
  for ($i = 0; $i < 3; ++$i) {
    $numerator += ($ref2[$i] - $ref1[$i]) * ($ref2[$i] - $ref1[$i]);
    $denominator += ($target[$i] - $ref1[$i]) * ($target[$i] - $ref1[$i]);
  }
  $delta = ($denominator > 0) ? (1 - sqrt($numerator / $denominator)) : 0;

  // Calculate the color that ref2 would be if the assumption was true.
  for ($i = 0; $i < 3; ++$i) {
    $ref3[$i] = $target[$i] + ($ref1[$i] - $target[$i]) * $delta;
  }

  // If the assumption is not true, there is a difference between ref2 and ref3.
  // We measure this in HSL space. Notation: x' = hsl(x).
  $ref2 = _color_rgb2hsl($ref2);
  $ref3 = _color_rgb2hsl($ref3);
  for ($i = 0; $i < 3; ++$i) {
    $shift[$i] = $ref2[$i] - $ref3[$i];
  }

  // Take the given color, and blend it towards the target.
  $given = _color_unpack($given, TRUE);
  for ($i = 0; $i < 3; ++$i) {
    $result[$i] = $target[$i] + ($given[$i] - $target[$i]) * $delta;
  }

  // Finally, we apply the extra shift in HSL space.
  // Note: if ref2 is a pure blend of ref1 and target, then |shift| = 0.
  $result = _color_rgb2hsl($result);
  for ($i = 0; $i < 3; ++$i) {
    $result[$i] = min(1, max(0, $result[$i] + $shift[$i]));
  }
  $result = _color_hsl2rgb($result);

  // Return hex color.
  return _color_pack($result, TRUE);
}

/**
 * Converts a hex triplet into a GD color.
 */
function _color_gd($img, $hex) {
  $c = array_merge(array($img), _color_unpack($hex));
  return call_user_func_array('imagecolorallocate', $c);
}

/**
 * Blends two hex colors and returns the GD color.
 */
function _color_blend($img, $hex1, $hex2, $alpha) {
  $in1 = _color_unpack($hex1);
  $in2 = _color_unpack($hex2);
  $out = array($img);
  for ($i = 0; $i < 3; ++$i) {
    $out[] = $in1[$i] + ($in2[$i] - $in1[$i]) * $alpha;
  }

  return call_user_func_array('imagecolorallocate', $out);
}

/**
 * Converts a hex color into an RGB triplet.
 */
function _color_unpack($hex, $normalize = FALSE) {
  $hex = substr($hex, 1);
  if (strlen($hex) == 3) {
    $hex = $hex[0] . $hex[0] . $hex[1] . $hex[1] . $hex[2] . $hex[2];
  }
  $c = hexdec($hex);
  for ($i = 16; $i >= 0; $i -= 8) {
    $out[] = (($c >> $i) & 0xFF) / ($normalize ? 255 : 1);
  }

  return $out;
}

/**
 * Converts an RGB triplet to a hex color.
 */
function _color_pack($rgb, $normalize = FALSE) {
  $out = 0;
  foreach ($rgb as $k => $v) {
    $out |= (($v * ($normalize ? 255 : 1)) << (16 - $k * 8));
  }

  return '#' . str_pad(dechex($out), 6, 0, STR_PAD_LEFT);
}

/**
 * Converts an HSL triplet into RGB.
 */
function _color_hsl2rgb($hsl) {
  $h = $hsl[0];
  $s = $hsl[1];
  $l = $hsl[2];
  $m2 = ($l <= 0.5) ? $l * ($s + 1) : $l + $s - $l*$s;
  $m1 = $l * 2 - $m2;

  return array(
    _color_hue2rgb($m1, $m2, $h + 0.33333),
    _color_hue2rgb($m1, $m2, $h),
    _color_hue2rgb($m1, $m2, $h - 0.33333),
  );
}

/**
 * Helper function for _color_hsl2rgb().
 */
function _color_hue2rgb($m1, $m2, $h) {
  $h = ($h < 0) ? $h + 1 : (($h > 1) ? $h - 1 : $h);
  if ($h * 6 < 1) return $m1 + ($m2 - $m1) * $h * 6;
  if ($h * 2 < 1) return $m2;
  if ($h * 3 < 2) return $m1 + ($m2 - $m1) * (0.66666 - $h) * 6;

  return $m1;
}

/**
 * Converts an RGB triplet to HSL.
 */
function _color_rgb2hsl($rgb) {
  $r = $rgb[0];
  $g = $rgb[1];
  $b = $rgb[2];
  $min = min($r, min($g, $b));
  $max = max($r, max($g, $b));
  $delta = $max - $min;
  $l = ($min + $max) / 2;
  $s = 0;

  if ($l > 0 && $l < 1) {
    $s = $delta / ($l < 0.5 ? (2 * $l) : (2 - 2 * $l));
  }

  $h = 0;
  if ($delta > 0) {
    if ($max == $r && $max != $g) $h += ($g - $b) / $delta;
    if ($max == $g && $max != $b) $h += (2 + ($b - $r) / $delta);
    if ($max == $b && $max != $r) $h += (4 + ($r - $g) / $delta);
    $h /= 6;
  }

  return array($h, $s, $l);
}