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/ui/text/JavaSourceViewerConfiguration.java
/** 
	 * Preference key used to look up display tab width.
	 * 
	 * @since 2.0
	 * @deprecated As of 3.0 replaced by {@link ExtendedTextEditorPreferenceConstants#EDITOR_TAB_WIDTH}
	 */
	public final static String PREFERENCE_TAB_WIDTH= PreferenceConstants.EDITOR_TAB_WIDTH;
	/**