Index: branches/RC/core/install/upgrades.php
===================================================================
diff -u -r11238 -r11418
--- branches/RC/core/install/upgrades.php	(.../upgrades.php)	(revision 11238)
+++ branches/RC/core/install/upgrades.php	(.../upgrades.php)	(revision 11418)
@@ -666,4 +666,50 @@
 			$this->Conn->Query($sql);
 		}
 
+
+		/**
+		 * Update colors in skin (only if they were not changed manually)
+		 *
+		 * @param string $mode when called mode {before, after)
+		 */
+		function Upgrade_5_0_0($mode)
+		{
+			if ($mode == 'after') {
+				$skin =& $this->Application->recallObject('skin', null, Array ('skip_autoload' => 1));
+				/* @var $skin kDBItem */
+
+				$skin->Load(1, 'IsPrimary');
+				if ($skin->isLoaded()) {
+					$skin_options = unserialize( $skin->GetDBField('Options') );
+
+					$changes = Array (
+						// option: from -> to
+						'HeadBgColor' => Array ('#1961B8', '#007BF4'),
+						'HeadBarColor' => Array ('#FFFFFF', '#000000'),
+					);
+
+					$can_change = true;
+					foreach ($changes as $option_name => $change) {
+						list ($change_from, $change_to) = $change;
+
+						$can_change = $can_change && ($change_from == $skin_options[$option_name]['Value']);
+						if ($can_change) {
+							$skin_options[$option_name]['Value'] = $change_to;
+						}
+					}
+
+					if ($can_change) {
+						$skin->SetDBField('Options', serialize($skin_options));
+						$skin->Update();
+
+						$skin_eh =& $this->Application->recallObject('skin_EventHandler');
+						/* @var $skin_eh SkinEventHandler */
+
+						$skin_eh->Compile($skin);
+					}
+				}
+
+			}
+		}
+
 	}
\ No newline at end of file