Re: White box / window flicker upon launch

[Tom Schindl]

yes I do but I think this is by nature:

a) you use CSS so only after the first CSS-Pass the color could be set
   appropriately, this CSS pass could happen after the Native-Window is
   shown
   => you can mitigate that a bit using
   root.setBackground(new Background(new BackgroundFill(Color.ORANGE,
      CornerRadii.EMPTY, Insets.EMPTY)));
b) if the above gives you short flash (IMHO shorter than with CSS) and
   you can see that by setting eg RED or GREEN as the Scene-Fill so then
   it gets more prominent

So the flash is gone if you put the same color to Scene.setFill() as 
your root-Pane but now something slightly unexpected happens. The trim 
is colored slighly in your scene-color ;-)

Tom

Am 22.04.20 um 19:46 schrieb Dirk Lemmermann:
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;

public class BugDemo extends Application {

     public void start(Stage stage) {
         VBox root = new VBox();
         root.setStyle("-fx-background-color: orange;");
         Scene scene = new Scene(root, 1000, 800);
         stage.setScene(scene);
         stage.show();
     }

     public static void main(String[] args) {
         launch(args);
     }
}