Use proper check to see if there are any arrows
Use proper check to see if there are any arrows

ghisvail/vispy,michaelaye/vispy,Eric89GXL/vispy,michaelaye/vispy,drufat/vispy,ghisvail/vispy,ghisvail/vispy,drufat/vispy,Eric89GXL/vispy,drufat/vispy,Eric89GXL/vispy,michaelaye/vispy