How to allow users change theme for specific pages A page has been created with panels which list all the contents of each user.
I want to allow each user to be able to change the theme used for his own panel page.  Whenever anyone visits the user panel page,  they should see the theme of that user. 

I have tried themekey but it only allows for sitewide theme. 

What else can i do?
You hook_custom_theme()

function MYMODULE_custom_theme() {
  // Set path specific theme.
  if (current_path() == 'Your Path') {
    return 'Your theme name here';
  }
}


Note: Clear cache and have a check

Or You can use Drupal module: ThemeKey


  ThemeKey allows you to define simple or sophisticated theme-switching
  rules which allow automatic selection of a theme depending on current
  path, taxonomy terms, language, node-type, and many, many other
  properties.