Garland sub-theme color functionality is not working I have a subtheme in Drupal 7 for Garland theme. below is my my_garland.info file for the sub-theme 

name = My Custom Sub Theme
description = Custom sub-theme of Garland
core = 7.x
base theme = garland
stylesheets[all][] = my_garland.css


i have also include some information in the template.php file to help with the color module 

function my_garland_process_html(&amp;$vars) {
  // Hook into color.module.
  if (module_exists('color')) {
    _color_html_alter($vars);
  }
}


I have also copied the color and images file from the garland theme therefore the initial blue works perfectly and i can see the color wheel but the total page layout is not changing.
I have also tried to follow this link to see if it will be resolved but all in vain. Thanks in advance for your assistance.
From Example: Creating a Garland Subtheme That Utilizes the Color Module


  That said, even if you do not have a style.css file in your subtheme
  directory, you still must add it to your .info file with
  stylesheets[all][] = style.css