GladePalette
@gladepalette: the object which received the signal.
@GLADE_ITEM_ICON_AND_LABEL:
@GLADE_ITEM_ICON_ONLY:
@GLADE_ITEM_LABEL_ONLY:
@catalogs:
@Returns:
@palette:
@sticky_aware:
@palette:
@Returns:
@palette:
@Returns:
@palette:
@item_appearance:
@palette:
@Returns:
@palette:
@use_small_item_icons:
@palette:
@show_selector_button:
@palette:
@Returns: