diff --git a/core/field_dropdown.js b/core/field_dropdown.js
index 8a4aba774..849d15b85 100644
--- a/core/field_dropdown.js
+++ b/core/field_dropdown.js
@@ -683,7 +683,7 @@ Blockly.FieldDropdown.prototype.positionSVGArrow_ = function(x, y) {
   if (!this.svgArrow_) {
     return 0;
   }
-  var padding = this.constants_.FIELD_BORDER_RECT_X_PADDING;
+  var padding = this.constants_.FIELD_DROPDOWN_SVG_ARROW_PADDING;
   var svgArrowSize = this.constants_.FIELD_DROPDOWN_SVG_ARROW_SIZE;
   var arrowX = this.sourceBlock_.RTL ? padding : x + padding;
   this.svgArrow_.setAttribute('transform',
diff --git a/core/renderers/common/constants.js b/core/renderers/common/constants.js
index e623b18f9..dbfd4a6dd 100644
--- a/core/renderers/common/constants.js
+++ b/core/renderers/common/constants.js
@@ -342,6 +342,35 @@ Blockly.blockRendering.ConstantProvider = function() {
    */
   this.FIELD_DROPDOWN_SVG_ARROW = false;
 
+  /**
+   * A dropdown field's SVG arrow padding.
+   * @type {number}
+   */
+  this.FIELD_DROPDOWN_SVG_ARROW_PADDING = this.FIELD_BORDER_RECT_X_PADDING;
+
+  /**
+   * A dropdown field's SVG arrow size.
+   * @type {number}
+   */
+  this.FIELD_DROPDOWN_SVG_ARROW_SIZE = 12;
+
+  /**
+   * A dropdown field's SVG arrow datauri.
+   * @type {string}
+   */
+  this.FIELD_DROPDOWN_SVG_ARROW_DATAURI =
+    'data:image/svg+xml;base64,PHN2ZyBpZD0iTGF5ZXJfMSIgZGF0YS1uYW1lPSJMYXllci' +
+    'AxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMi43MSIgaG' +
+    'VpZ2h0PSI4Ljc5IiB2aWV3Qm94PSIwIDAgMTIuNzEgOC43OSI+PHRpdGxlPmRyb3Bkb3duLW' +
+    'Fycm93PC90aXRsZT48ZyBvcGFjaXR5PSIwLjEiPjxwYXRoIGQ9Ik0xMi43MSwyLjQ0QTIuND' +
+    'EsMi40MSwwLDAsMSwxMiw0LjE2TDguMDgsOC4wOGEyLjQ1LDIuNDUsMCwwLDEtMy40NSwwTD' +
+    'AuNzIsNC4xNkEyLjQyLDIuNDIsMCwwLDEsMCwyLjQ0LDIuNDgsMi40OCwwLDAsMSwuNzEuNz' +
+    'FDMSwwLjQ3LDEuNDMsMCw2LjM2LDBTMTEuNzUsMC40NiwxMiwuNzFBMi40NCwyLjQ0LDAsMC' +
+    'wxLDEyLjcxLDIuNDRaIiBmaWxsPSIjMjMxZjIwIi8+PC9nPjxwYXRoIGQ9Ik02LjM2LDcuNz' +
+    'lhMS40MywxLjQzLDAsMCwxLTEtLjQyTDEuNDIsMy40NWExLjQ0LDEuNDQsMCwwLDEsMC0yYz' +
+    'AuNTYtLjU2LDkuMzEtMC41Niw5Ljg3LDBhMS40NCwxLjQ0LDAsMCwxLDAsMkw3LjM3LDcuMz' +
+    'dBMS40MywxLjQzLDAsMCwxLDYuMzYsNy43OVoiIGZpbGw9IiNmZmYiLz48L3N2Zz4=';
+
   /**
    * Whether or not to show a box shadow around the widget div. This is only a
    * feature of full block fields.
diff --git a/core/renderers/zelos/constants.js b/core/renderers/zelos/constants.js
index 135d61130..f4ca8189d 100644
--- a/core/renderers/zelos/constants.js
+++ b/core/renderers/zelos/constants.js
@@ -314,29 +314,9 @@ Blockly.zelos.ConstantProvider = function() {
   this.FIELD_DROPDOWN_SVG_ARROW = true;
 
   /**
-   * A dropdown field's SVG arrow size.
-   * @type {number}
-   * @const
+   * @override
    */
-  this.FIELD_DROPDOWN_SVG_ARROW_SIZE = 3 * this.GRID_UNIT;
-
-  /**
-   * A dropdown field's SVG arrow datauri.
-   * @type {string}
-   * @const
-   */
-  this.FIELD_DROPDOWN_SVG_ARROW_DATAURI =
-    'data:image/svg+xml;base64,PHN2ZyBpZD0iTGF5ZXJfMSIgZGF0YS1uYW1lPSJMYXllci' +
-    'AxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHdpZHRoPSIxMi43MSIgaG' +
-    'VpZ2h0PSI4Ljc5IiB2aWV3Qm94PSIwIDAgMTIuNzEgOC43OSI+PHRpdGxlPmRyb3Bkb3duLW' +
-    'Fycm93PC90aXRsZT48ZyBvcGFjaXR5PSIwLjEiPjxwYXRoIGQ9Ik0xMi43MSwyLjQ0QTIuND' +
-    'EsMi40MSwwLDAsMSwxMiw0LjE2TDguMDgsOC4wOGEyLjQ1LDIuNDUsMCwwLDEtMy40NSwwTD' +
-    'AuNzIsNC4xNkEyLjQyLDIuNDIsMCwwLDEsMCwyLjQ0LDIuNDgsMi40OCwwLDAsMSwuNzEuNz' +
-    'FDMSwwLjQ3LDEuNDMsMCw2LjM2LDBTMTEuNzUsMC40NiwxMiwuNzFBMi40NCwyLjQ0LDAsMC' +
-    'wxLDEyLjcxLDIuNDRaIiBmaWxsPSIjMjMxZjIwIi8+PC9nPjxwYXRoIGQ9Ik02LjM2LDcuNz' +
-    'lhMS40MywxLjQzLDAsMCwxLTEtLjQyTDEuNDIsMy40NWExLjQ0LDEuNDQsMCwwLDEsMC0yYz' +
-    'AuNTYtLjU2LDkuMzEtMC41Niw5Ljg3LDBhMS40NCwxLjQ0LDAsMCwxLDAsMkw3LjM3LDcuMz' +
-    'dBMS40MywxLjQzLDAsMCwxLDYuMzYsNy43OVoiIGZpbGw9IiNmZmYiLz48L3N2Zz4=';
+  this.FIELD_DROPDOWN_SVG_ARROW_PADDING = this.FIELD_BORDER_RECT_X_PADDING;
 
   /**
    * @override