diff --git a/vtkm/cont/ColorTable.h b/vtkm/cont/ColorTable.h
index 45d7b91d6..9b02d0661 100644
--- a/vtkm/cont/ColorTable.h
+++ b/vtkm/cont/ColorTable.h
@@ -166,7 +166,7 @@ public:
   ///
   /// Note: The color table will have 0 entries
   /// Note: The alpha table will have 0 entries
-  ColorTable(ColorSpace space = ColorSpace::LAB);
+  explicit ColorTable(ColorSpace space);
 
   /// Construct a color table with a 2 positions
   ///
diff --git a/vtkm/cont/testing/TestingColorTable.h b/vtkm/cont/testing/TestingColorTable.h
index fd504a739..600b15faa 100644
--- a/vtkm/cont/testing/TestingColorTable.h
+++ b/vtkm/cont/testing/TestingColorTable.h
@@ -109,7 +109,7 @@ public:
 
     //verify that we can get the presets
     std::set<std::string> names = table.GetPresets();
-    VTKM_TEST_ASSERT(names.size() == 14, "incorrect number of names in preset set");
+    VTKM_TEST_ASSERT(names.size() == 15, "incorrect number of names in preset set");
 
     VTKM_TEST_ASSERT(names.count("inferno") == 1, "names should contain inferno");
     VTKM_TEST_ASSERT(names.count("black-body radiation") == 1,
@@ -288,8 +288,7 @@ public:
     vtkm::Range range{ 0.0, 50.0 };
     auto diverging = vtkm::cont::ColorSpace::DIVERGING;
 
-    vtkm::cont::ColorTable table;
-    table.LoadPreset("Cool to Warm");
+    vtkm::cont::ColorTable table(vtkm::cont::ColorTable::Preset::COOL_TO_WARM);
     VTKM_TEST_ASSERT(table.GetColorSpace() == diverging,
                      "color space not switched when loading preset");
 
@@ -426,8 +425,7 @@ public:
   static void TestSampling()
   {
 
-    vtkm::cont::ColorTable table;
-    table.LoadPreset("Linear green");
+    vtkm::cont::ColorTable table(vtkm::cont::ColorTable::Preset::LINEAR_GREEN);
     VTKM_TEST_ASSERT((table.GetRange() == vtkm::Range{ 0.0, 1.0 }),
                      "loading linear green table failed with wrong range");
     VTKM_TEST_ASSERT((table.GetNumberOfPoints() == 21),
@@ -453,8 +451,7 @@ public:
   {
     //build a color table with clamping off and verify that sampling works
     vtkm::Range range{ 0.0, 50.0 };
-    vtkm::cont::ColorTable table;
-    table.LoadPreset("Cool to Warm");
+    vtkm::cont::ColorTable table(vtkm::cont::ColorTable::Preset::COOL_TO_WARM);
     table.RescaleToRange(range);
     table.SetClampingOff();
     table.SetAboveRangeColor(vtkm::Vec<float, 3>{ 1.0f, 0.0f, 0.0f }); //red
diff --git a/vtkm/filter/testing/UnitTestFieldToColors.cxx b/vtkm/filter/testing/UnitTestFieldToColors.cxx
index c62ac5a1c..bd8032019 100644
--- a/vtkm/filter/testing/UnitTestFieldToColors.cxx
+++ b/vtkm/filter/testing/UnitTestFieldToColors.cxx
@@ -32,8 +32,7 @@ void TestFieldToColors()
 
   //build a color table with clamping off and verify that sampling works
   vtkm::Range range{ 0.0, 50.0 };
-  vtkm::cont::ColorTable table;
-  table.LoadPreset(vtkm::cont::ColorTable::Preset::COOL_TO_WARM);
+  vtkm::cont::ColorTable table(vtkm::cont::ColorTable::Preset::COOL_TO_WARM);
   table.RescaleToRange(range);
   table.SetClampingOff();
   table.SetAboveRangeColor(vtkm::Vec<float, 3>{ 1.0f, 0.0f, 0.0f }); //red
diff --git a/vtkm/rendering/Actor.cxx b/vtkm/rendering/Actor.cxx
index 67e9c793b..624ff26eb 100644
--- a/vtkm/rendering/Actor.cxx
+++ b/vtkm/rendering/Actor.cxx
@@ -38,17 +38,6 @@ struct Actor::InternalsType
   vtkm::Range ScalarRange;
   vtkm::Bounds SpatialBounds;
 
-  VTKM_CONT
-  InternalsType(const vtkm::cont::DynamicCellSet& cells,
-                const vtkm::cont::CoordinateSystem& coordinates,
-                const vtkm::cont::Field& scalarField)
-    : Cells(cells)
-    , Coordinates(coordinates)
-    , ScalarField(scalarField)
-  {
-    this->ColorTable.LoadPreset("Cool to Warm");
-  }
-
   VTKM_CONT
   InternalsType(const vtkm::cont::DynamicCellSet& cells,
                 const vtkm::cont::CoordinateSystem& coordinates,
@@ -65,7 +54,7 @@ struct Actor::InternalsType
   InternalsType(const vtkm::cont::DynamicCellSet& cells,
                 const vtkm::cont::CoordinateSystem& coordinates,
                 const vtkm::cont::Field& scalarField,
-                const vtkm::cont::ColorTable& colorTable)
+                const vtkm::cont::ColorTable& colorTable = vtkm::cont::ColorTable::Preset::DEFAULT)
     : Cells(cells)
     , Coordinates(coordinates)
     , ScalarField(scalarField)
diff --git a/vtkm/rendering/ColorBarAnnotation.cxx b/vtkm/rendering/ColorBarAnnotation.cxx
index 4b02eaee0..c92f7b76b 100644
--- a/vtkm/rendering/ColorBarAnnotation.cxx
+++ b/vtkm/rendering/ColorBarAnnotation.cxx
@@ -27,11 +27,11 @@ namespace rendering
 {
 
 ColorBarAnnotation::ColorBarAnnotation()
+  : ColorTable(vtkm::cont::ColorSpace::LAB)
+  , Position(vtkm::Range(-0.88, +0.88), vtkm::Range(+0.87, +0.92), vtkm::Range(0, 0))
+  , Horizontal(true)
+  , FieldName("")
 {
-  vtkm::Bounds bounds(vtkm::Range(-0.88, +0.88), vtkm::Range(+0.87, +0.92), vtkm::Range(0, 0));
-  Position = bounds;
-  Horizontal = true;
-  FieldName = "";
 }
 
 ColorBarAnnotation::~ColorBarAnnotation()