MIN: derive isolines from parent visual luminance
MIN: derive isolines from parent visual luminance

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