Bug 119603 [api][content assist] allow contributions to filter and sort proposals
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/PreferenceConstants.java
* A named preference that stores the value for imports folding for the default folding provider.
	 * <p>
	 * Value is of type <code>Boolean</code>.
	 * </p>
	 * 
	 * @since 3.0
	 */
	public static final String EDITOR_FOLDING_IMPORTS= "editor_folding_default_imports"; 
	/**
	 * A named preference that stores the value for header comment folding for the default folding provider.
	 * <p>
	 * Value is of type <code>Boolean</code>.
	 * </p>
	 * 
	 * @since 3.1
	 */
	public static final String EDITOR_FOLDING_HEADERS= "editor_folding_default_headers"; 
	
	
	/**
	 * The symbolic font name for the Java properties file editor text font 
	 * (value <code>"org.eclipse.jdt.ui.PropertiesFileEditor.textfont"</code>).
	 * 
	 * @since 3.1
	 */
	public static final String PROPERTIES_FILE_EDITOR_TEXT_FONT= "org.eclipse.jdt.ui.PropertiesFileEditor.textfont"; 
	/**
	 * A named preference that holds the color used to render keys in a properties file.
	 * <p>
	 * Value is of type <code>String</code>. A RGB color value encoded as a string