CSS Error parsing Warning may be thrown

[leewyatt]

Control: Color Picker.
CSS warning may be thrown when the value of the alpha is a decimals stored in scientific notation;

Expected Behavior

Alpha values should be rounded.

Current Behavior

For example, alpha value is 7.552884496591084E-4
e.g. : The console will output:

CSS Error parsing '*{-fx-fill: hsb(224.0,100.0%,92.0%,7.552884496591084E-4)}: Unexpected token '7.552884496591084E' at [1,35]

Steps to Reproduce

Write an app, use colorpicker, drag the slider several times to adjust the value of alpha,
and usually throw this warning when the transparency is close to 0

Your Environment

Win10 x64; JDK17

Screenshots

Location:
https://github.com/gluonhq/scenebuilder/blob/master/kit/src/main/java/com/oracle/javafx/scenebuilder/kit/util/control/paintpicker/colorpicker/ColorPicker.java
Line 462
Possible solution:
Source code: sb.append(alpha);
Modified code: sb.append(alpha_rounded); //alpha_rounded already exists