In the menu bar we change the toolbar icons when the user clicks on it.

m_color.clicked :

IF this.toolBarItemText = "Yellow" THEN
    this.toolBarItemText = "Red"    
    this.toolBarItemName = "red.png"    
ELSE
    this.toolBarItemText = "Yellow"    
    this.toolBarItemName = "yellow.png"
END IF

With PB 2017 R3 this was no problem.

With PB 2019 R2 Build 2353 this does not work anymore.

I found that this still works with BMP icons, but no longer with PNG icons.

Is this a bug?