LOK: custom widgets: don't clobber the custom colors

The old logic threw away the result of updateSettings
by applying the styles saved and modified after calling
it, which lost all the custom colors thereby breaking
custom-widgets and themeing altogether.

Change-Id: Ic3750f145b67cd6a379f3b628a10c213a31656e7

vcl/headless/svpframe.cxx

@@ -439,13 +439,14 @@ void SvpSalFrame::UpdateSettings( AllSettings& rSettings )
             }
             bFreeGraphics = true;
         }
+        rSettings.SetStyleSettings(aStyleSettings);
         pGraphics->updateSettings(rSettings);
 
         if (bFreeGraphics)
             ReleaseGraphics(pGraphics);
     }
-
-    rSettings.SetStyleSettings( aStyleSettings );
+    else
+        rSettings.SetStyleSettings(aStyleSettings);
 }
 
 void SvpSalFrame::Beep()