Minor fix in mesh visual example
Minor fix in mesh visual example

bollu/vispy,michaelaye/vispy,QuLogic/vispy,Eric89GXL/vispy,sbtlaarzc/vispy,sh4wn/vispy,inclement/vispy,srinathv/vispy,inclement/vispy,jay3sh/vispy,jdreaver/vispy,dchilds7/Deysha-Star-Formation,bollu/vispy,kkuunnddaannkk/vispy,RebeccaWPerry/vispy,Eric89GXL/vispy,drufat/vispy,sbtlaarzc/vispy,hronoses/vispy,bollu/vispy,hronoses/vispy,hronoses/vispy,kkuunnddaannkk/vispy,sh4wn/vispy,julienr/vispy,jdreaver/vispy,ghisvail/vispy,srinathv/vispy,srinathv/vispy,ghisvail/vispy,sh4wn/vispy,sbtlaarzc/vispy,drufat/vispy,kkuunnddaannkk/vispy,dchilds7/Deysha-Star-Formation,jdreaver/vispy,julienr/vispy,dchilds7/Deysha-Star-Formation,julienr/vispy,QuLogic/vispy,ghisvail/vispy,jay3sh/vispy,RebeccaWPerry/vispy,michaelaye/vispy,michaelaye/vispy,inclement/vispy,drufat/vispy,Eric89GXL/vispy,RebeccaWPerry/vispy,jay3sh/vispy,QuLogic/vispy