Bug 53010 Editor preferences do not take effect on open editors
I-20040224 Go to the Java > Editor > Syntax preference page. Change the keyword color to red. Press Ok. At this point, we use to see the preview update. Not on this build (problem #1). Press Ok, and close the pref dialog. The java editor that was already open did not update. I had to close it and reopen it for the colors to take effect (problem #2)
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaEditor.java
}
		/**
		 * Creates a color from the information stored in the given preference store.
		 * Returns <code>null</code> if there is no such information available.
		 */
		private Color createColor(IPreferenceStore store, String key, Display display) {
		
			RGB rgb= null;		
			
			if (store.contains(key)) {
				
				if (store.isDefault(key))
					rgb= PreferenceConverter.getDefaultColor(store, key);
				else
					rgb= PreferenceConverter.getColor(store, key);
			
				if (rgb != null)
					return new Color(display, rgb);
			}
			
			return null;
		}		
	
		private void repairRepresentation() {			
			repairRepresentation(false);
		}
		private void repairRepresentation(boolean redrawAll) {			
			if (fActiveRegion == null)
				return;