diff --git a/examples/specs/brush.vl.json b/examples/specs/brush.vl.json
index 2267019a442..68588e07375 100644
--- a/examples/specs/brush.vl.json
+++ b/examples/specs/brush.vl.json
@@ -12,8 +12,8 @@
     "x": {"field": "Horsepower", "type": "quantitative"},
     "y": {"field": "Miles_per_Gallon", "type": "quantitative"},
     "color": {
-      "condition": {"selection": {"not": "brush"}, "value": "grey"},
-      "field": "Cylinders", "type": "ordinal"
+      "condition": {"selection": "brush", "field": "Cylinders", "type": "ordinal"},
+      "value": "grey"
     }
   }
 }
diff --git a/examples/specs/interactive_splom.vl.json b/examples/specs/interactive_splom.vl.json
index 41acab7485b..bda2b709aa2 100644
--- a/examples/specs/interactive_splom.vl.json
+++ b/examples/specs/interactive_splom.vl.json
@@ -31,10 +31,11 @@
         "type": "quantitative"
       },
       "color": {
-        "field": "Origin","type": "nominal",
         "condition": {
-          "selection": {"not": "brush"}, "value": "grey"
-        }
+          "selection": "brush",
+          "field": "Origin","type": "nominal"
+        },
+        "value": "grey"
       }
     }
   }
diff --git a/examples/specs/layered_selections.vl.json b/examples/specs/layered_selections.vl.json
index 12f026c378a..34fce76b5f5 100644
--- a/examples/specs/layered_selections.vl.json
+++ b/examples/specs/layered_selections.vl.json
@@ -36,8 +36,8 @@
       "x": {"field": "Horsepower", "type": "quantitative"},
       "y": {"field": "Miles_per_Gallon", "type": "quantitative"},
       "color": {
-        "condition": {"selection": {"not": "brush"}, "value": "grey"},
-        "field": "Cylinders", "type": "ordinal"
+        "condition": {"selection": "brush", "field": "Cylinders", "type": "ordinal"},
+        "value": "grey"
       },
       "size": {
         "value": 50,
diff --git a/examples/specs/query_widgets.vl.json b/examples/specs/query_widgets.vl.json
index d1c3106a078..25ca2effc62 100644
--- a/examples/specs/query_widgets.vl.json
+++ b/examples/specs/query_widgets.vl.json
@@ -18,8 +18,8 @@
       "x": {"field": "Horsepower", "type": "quantitative"},
       "y": {"field": "Miles_per_Gallon", "type": "quantitative"},
       "color": {
-        "field": "Origin", "type": "nominal",
-        "condition": {"selection": {"not": "CylYr"}, "value": "grey"}
+        "condition": {"selection": "CylYr", "field": "Origin", "type": "nominal"},
+        "value": "grey"
       }
     }
   }, {