Set Default Admin Colour For All Users

2 comments

1. You can set (in terms of force) a default color within functions.php like this:

   add_filter( 'get_user_option_admin_color', 'update_user_option_admin_color', 5 );
   
   function update_user_option_admin_color( $color_scheme ) {
       $color_scheme = 'light';
   
       return $color_scheme;
   }
   

   Update: The following color schemes are available per default at WP 3.8

   • fresh
   • light
   • blue
   • coffee
   • ectoplasm
   • midnight
   • ocean
   • sunrise

   Bonus (found on wpmudev): Disable the Admin Color Scheme Options to make sure that users can not switch back to another color:

   remove_action( 'admin_color_scheme_picker', 'admin_color_scheme_picker' );
   

   Update 2: As Rarst pointed out the filter above will force a specific color scheme instead of setting a changeable default. The solution to this is to run an action only once (e.g. on user setup/registration) so after that the user can decide and change the color on his own:

   add_action( 'user_register', 'myplugin_registration_save', 10, 1 );
   function myplugin_registration_save( $user_id ) {
   
          update_user_meta($user_id, 'admin_color', 'light');
   
   }
   

   Update 3: Okay, so one more try 🙂

   The idea is to add extra user meta data (see custom_admin_color_scheme) as soon as the user updates the profile; as long as the field is not set to true we’ll change the default admin color scheme to a color scheme of our choice:

   // add custom user meta data
   add_action('personal_options_update', 'save_custom_admin_color_optios');
   function save_custom_admin_color_optios( $user_id ) {
   
       update_user_meta($user_id, 'custom_admin_color_scheme', true);
   
   }
   
   // change default color scheme if not customized
   $customized_color_scheme = get_user_option( 'custom_admin_color_scheme', get_current_user_id() );
   if ( empty($customized_color_scheme) ) {
   
       update_user_meta(get_current_user_id(), 'admin_color', 'light');
   
   }
   

   Update 4: Finally there is also a very nice plugin on wordpress.org to handle default admin color schemes easily: Default Admin Color Scheme

2. the add_filter( 'get_user_option_admin_color', ...) sets the color, but it doesn’t remove the option from my-profile page. So, if you want to enforce (and block) any modification by user:

       remove_action("admin_color_scheme_picker", "admin_color_scheme_picker"); 
   

   If you also need to set that when user registers, then :

   add_action('user_register', 'my_func');
   function my_func($user_id) {
       $args = array(
           'ID' => $user_id,
           'admin_color' => 'ectoplasm'
       );
       wp_update_user( $args );
   }
   

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