varying point size

Author: monfera

test/image/mocks/gl3d_streamtubes_basic.json

@@ -13,7 +13,7 @@
         "color": [0,1,2,3,4,5,6,7,8,9,10]
       },
       "marker": {
-        "size": 8,
+        "size": [10,16,12,18,20,28,22,24,14,26,30],
         "colorscale": "Viridis",
         "color": [10,9,8,7,6,5,4,3,2,1,0],
         "showscale": true