check arg type before assigning block style for default args of number-style-1strarg
check arg type before assigning block style for default args of number-style-1strarg

walterbender/AmazonasTortuga,walterbender/turtleflags,walterbender/turtleart,walterbender/turtleconfusion,AlanJAS/turtleart,walterbender/turtleartmini,walterbender/turtle3D