function updateHeaderSelectorIcon(oPlugin) {
		if (oPlugin._isLimitDisabled()) {
			return;
		}

		let sIconURI = IconPool.getIconURI(TableUtils.ThemeParameters.checkboxIcon);

		if (oPlugin.getSelectedCount() > 0) {
			if (areAllRowsSelected(oPlugin)) {
				sIconURI = IconPool.getIconURI(TableUtils.ThemeParameters.allSelectedIcon);
			} else {
				sIconURI = IconPool.getIconURI(TableUtils.ThemeParameters.clearSelectionIcon);
			}
		}

		oPlugin.getAggregation("icon").setSrc(sIconURI);
	}
Changes the current icon and tooltip text of the header selection icon in the given plugin object based on the selection.

@param {sap.ui.table.plugins.ODataV4Selection} oPlugin The plugin to change the header selection icon on.