Issue in color setting

[Clemens Lanthaler]

Hi everyone,

I have just moved over my application (Photoslide) from JFX22 to JFX23 
and I am facing the folling issue:

  * For any FontIcon (iKonli) where I set the color in web form I am
    getting the follwing exception:
      o Exception in thread "JavaFX Application Thread"
        java.lang.StackOverflowError
             at java.base/java.lang.String.substring(String.java:2930)
             at java.base/java.lang.String.substring(String.java:2898)
             at
        javafx.graphics at 24-ea/javafx.scene.paint.Color.web(Color.java:403)
             at
        javafx.graphics at 24-ea/javafx.scene.paint.Color.web(Color.java:646)
             at
        javafx.graphics at 24-ea/javafx.scene.paint.Color.valueOf(Color.java:667)
             at
        javafx.graphics at 24-ea/javafx.scene.paint.Paint.valueOf(Paint.java:124)
             at
        org.photoslide.MainViewController.lambda$initialize$1(MainViewController.java:266)
  * The corresponding code I am using and which is working with JFX22:
      o processListIcon.iconColorProperty().addListener((o) -> {
                     if (!taskProgressView.getTasks().isEmpty()) {
        processListIcon.setIconColor(Paint.valueOf("lightgreen"));
                     } else {
        processListIcon.setIconColor(Paint.valueOf("#c5c5c5"));
                     }
                 });
      o Changing "#c5c5c5" to e.g. "red" than all is fine. Also using
        the RGB values is resulting in an Exception (Color paint = new
        Color(0.7725, 0.7725, 0.7725, 1.0);)


This issue is also present in JFX24ea and I have searched if iKonli has 
an open issue. It seems that there is an issue.

cheers,
Clemens


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