Bug 45638 [preferences] overwrite mode setting
Needs to be moved to Java>Editor>Typing.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/PreferenceConstants.java
* A named preference that holds the color used as the text background.
	 * This value has not effect if the system default color is used.
	 * <p>
	 * Value is of type <code>String</code>. A RGB color value encoded as a string
	 * using class <code>PreferenceConverter</code>
	 * </p>
	 * 
	 * @see org.eclipse.jface.resource.StringConverter
	 * @see org.eclipse.jface.preference.PreferenceConverter
	 */
	public final static String EDITOR_BACKGROUND_COLOR= AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND;
	/**
	 * A named preference that describes if the system default background color
	 * is used as the text background.
	 * <p>
	 * Value is of type <code>Boolean</code>. 
	 * </p>
	 */
	public final static String EDITOR_BACKGROUND_DEFAULT_COLOR= AbstractTextEditor.PREFERENCE_COLOR_BACKGROUND_SYSTEM_DEFAULT;
	/**
	 * Preference key suffix for bold text style preference keys.
	 * 
	 * @since 2.1
	 */
	public static final String EDITOR_BOLD_SUFFIX= "_bold"; 
	/**
	 * A named preference that holds the color used to render multi line comments.
	 * <p>
	 * Value is of type <code>String</code>. A RGB color value encoded as a string
	 * using class <code>PreferenceConverter</code>