Bug 77537 [preferences] Preview window in Preferences->Java->Properties File Editor displays incorrect background color
The properties file editor seems to inherit its background color from the setting in Preferences->Java->Editor->Syntax. However, the preview window in Preferences->Java->Properties File Editor always displays a white background.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/javaeditor/JavaSourceViewer.java
/**
	 * Returns the backspace manager for this viewer.
	 * 
	 * @return the backspace manager for this viewer, or <code>null</code> if
	 *         there is none
	 * @since 3.0
	 */
	public SmartBackspaceManager getBackspaceManager() {
		return fBackspaceManager;
	}
	
	/*
	 * @see org.eclipse.jface.text.source.SourceViewer#handleDispose()
	 */
	protected void handleDispose() {
		if (fBackspaceManager != null) {
			fBackspaceManager.uninstall();
			fBackspaceManager= null;
		}
		super.handleDispose();
	}
	
	/**
	 * Prepends the text presentation listener at the beginning of the viewer's 
	 * list of text presentation listeners.  If the listener is already registered 
	 * with the viewer this call moves the listener to the beginning of
	 * the list.
	 *
	 * @param listener the text presentation listener
	 * @since 3.0