I am building a Client Editor which implements ILayerEditor3. I used a simple alphabetic letter for the Editor Toggle Toolbar button icon. I would now like to change the icon to something fancier but I cannot get it to change. The original icon is always shown even if I modify the file. I have tried returning a different file name in GetIconName?() and I have even deleted the original icon file, all to no avail. What must I do to change the icon?

Never mind -- I need to change GetEditorToolbarButton?(), not GetIconName?()