ColorPicker popup with title-bar.

v4.0.2.stable.official [7a0977ce2]

The popup with the ColorPicker invoked when a ColorPickerButton is pressed by default has no title-bar which means it can't be dragged around to reposition. However, by going through get_popup () for the ColorPickerButton and changing the "borderless" property to false just before the popup is shown (via the "about_to_popup" signal) allows you to enable the title-bar for it and therefore access this functionality. It might be helpful to include this information in the documentation for ColorPickerButton.

(https://docs.godotengine.org/en/stable/classes/class_colorpickerbutton.html#class-colorpickerbutton)