Ugly flashing when opening a css-styled stage

Robert Krüger krueger at
Sun Jun 1 08:18:39 UTC 2014


I'm in the process of evaluating Java FX 8 for our currently
Swing-based product (also Java 8) on OSX.

My first attempt to style a stage's background resulted in an ugly
flashing effect which I would classify as a show-stopper for
delivering a commercial product. This looks like it is caused by the
stage being drawn at least once before the style has been applied, and
I am wondering what the mistake is since my code is more or less a
straight-forward hello world:

package jfxtest;

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class JXTest extends Application {

    public void start(Stage primaryStage) throws Exception {
        final StackPane pane = new StackPane();
        final Button closeButton = new Button("Close");
        closeButton.setOnAction(event -> primaryStage.close());
        final Scene scene = new Scene(pane, 800, 600);

    public static void main(String[] args) {

with dark.css being:

.root {
          -fx-background: rgb(54, 54, 54);

Is this a Mac-specific problem? Is there a workaround? Which of the
two mailing lists is the more appropriate one to post these things
(JFX problems which look like they might be platform-specific) to?



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