<separator colspan="4"/>
<group col="2" colspan="4">
<button special="cancel" string="Cancel" icon='gtk-cancel'/>
- <button name="print_report" string="Print" colspan="1" type="object" icon="gtk-yes"/>
+ <button name="print_report" string="Print" colspan="1" type="object" icon="STOCK_PRINT"/>
</group>
</form>
</field>