fixing unselected dropdown options

src/core_plugins/kbn_vislib_vis_types/public/area.js

@@ -60,14 +60,7 @@ export default function PointSeriesVisType(Private) {
             title: {}
           }
         ],
-        seriesParams: [{
-          show: true,
-          type: 'area',
-          mode: 'stacked',
-          data: {
-            label: 'Count'
-          }
-        }],
+        seriesParams: [],
         addTooltip: true,
         addLegend: true,
         legendPosition: 'right',

src/core_plugins/kbn_vislib_vis_types/public/controls/point_series/series.js

@@ -17,11 +17,11 @@ module.directive('vislibSeries', function ($parse, $compile) {
           type: last ? last.type : 'line',
           drawLinesBetweenPoints: true,
           showCircles: true,
-          smoothLines: false,
+          interpolate: 'linear',
           data: {
             label: label
           },
-          valueAxis: ''
+          valueAxis: $scope.vis.params.valueAxes[0].id
         };
       }