Changing vpos has no impact on the text & graphic vertical positioning within the Labeled.

Run the attached test. At start up it shows up a label with a graphic and a text in it.
1) With app in focus type 1 on the keyboard repeatedly to change the vpos attribute of the displayed node.
Observer that there is no impact on the text & graphic vertical positioning within the displayed node.

2)With app in focus type 0, to change the displayed node from a label to a checkbox,radiobutton,togglebutton,hyperlink. Repeat step 1 and the bug is seen for all Labeled nodes.