diff --git a/bin/generate-exports.py b/bin/generate-exports.py
index e33eba5fc7..3e864df72a 100755
--- a/bin/generate-exports.py
+++ b/bin/generate-exports.py
@@ -85,10 +85,9 @@ class ObjectLiteral(Exportable):
 
 class Symbol(Exportable):
 
-    def __init__(self, name, export_symbol, export_as=None):
+    def __init__(self, name, export_symbol):
         Exportable.__init__(self, name)
         self.export_symbol = export_symbol
-        self.export_as = export_as or self.name
         self.props = set()
 
     __repr__ = simplerepr
@@ -96,7 +95,7 @@ class Symbol(Exportable):
     def export(self):
         lines = []
         if self.export_symbol:
-            lines.append('\n\ngoog.exportSymbol(\n    \'%s\',\n    %s);\n' % (self.name, self.export_as))
+            lines.append('\n\ngoog.exportSymbol(\n    \'%s\',\n    %s);\n' % (self.name, self.name))
         lines.extend('goog.exportProperty(\n    %s,\n    \'%s\',\n    %s.%s);\n' % (self.name, prop, self.name, prop) for prop in sorted(self.props))
         return ''.join(lines)
 
@@ -165,20 +164,18 @@ def main(argv):
                     objects[name] = symbol
                 symbol.props.add(prop)
                 continue
-            m = re.match(r'@exportSymbol\s+(?P<name>\S+)(?:\s+(?P<export_as>\S+))?\Z', line)
+            m = re.match(r'@exportSymbol\s+(?P<name>\S+)\Z', line)
             if m:
                 name = m.group('name')
                 if name in objects:
                     raise RuntimeError(line)  # Name already defined
-                export_as = m.group('export_as')
-                symbol = Symbol(name, True, export_as)
+                symbol = Symbol(name, True)
                 objects[name] = symbol
-                if not export_as:
-                    components = m.group('name').split('.')
-                    if re.match(r'[A-Z]', components[-1]):
-                        requires.add(name)
-                    elif len(components) > 1:
-                        requires.add('.'.join(components[:-1]))
+                components = m.group('name').split('.')
+                if re.match(r'[A-Z]', components[-1]):
+                    requires.add(name)
+                else:
+                    requires.add('.'.join(components[:-1]))
                 continue
             raise RuntimeError(line)
 
diff --git a/css/ol.css b/css/ol.css
index 5ea1ce539f..13232a0105 100644
--- a/css/ol.css
+++ b/css/ol.css
@@ -161,6 +161,8 @@ a.ol-full-screen-true:after {
   line-height: 26px;
 }
 .ol-zoom a:hover {
+  color: #fff;
+  text-decoration: none;
   background: rgba(0,60,136,0.7);
 }
 
diff --git a/examples/bind-input.js b/examples/bind-input.js
index 6a7a9a7962..bfc62663d2 100644
--- a/examples/bind-input.js
+++ b/examples/bind-input.js
@@ -1,13 +1,13 @@
+goog.require('ol.BrowserFeature');
 goog.require('ol.Map');
 goog.require('ol.RendererHints');
 goog.require('ol.View2D');
 goog.require('ol.dom.Input');
 goog.require('ol.layer.Tile');
 goog.require('ol.source.OSM');
-goog.require('ol.webgl');
 
 
-if (!ol.webgl.SUPPORTED) {
+if (!ol.BrowserFeature.HAS_WEBGL) {
   var inputs = document.getElementsByClassName('webgl');
   for (var i = 0, len = inputs.length; i < len; i++) {
     inputs[i].disabled = true;
diff --git a/examples/brightness-contrast.js b/examples/brightness-contrast.js
index d07824fcf6..47b9c66e8d 100644
--- a/examples/brightness-contrast.js
+++ b/examples/brightness-contrast.js
@@ -1,9 +1,9 @@
+goog.require('ol.BrowserFeature');
 goog.require('ol.Map');
 goog.require('ol.RendererHint');
 goog.require('ol.View2D');
 goog.require('ol.layer.Tile');
 goog.require('ol.source.MapQuestOpenAerial');
-goog.require('ol.webgl');
 
 
 function setResetBrightnessButtonHTML() {
@@ -15,7 +15,7 @@ function setResetContrastButtonHTML() {
   resetContrast.innerHTML = 'Contrast (' + layer.getContrast().toFixed(3) + ')';
 }
 
-if (!ol.webgl.SUPPORTED) {
+if (!ol.BrowserFeature.HAS_WEBGL) {
   var info = document.getElementById('no-webgl');
   /**
    * display error message
diff --git a/examples/hue-saturation.js b/examples/hue-saturation.js
index 8770a4ccb6..d80390bf70 100644
--- a/examples/hue-saturation.js
+++ b/examples/hue-saturation.js
@@ -1,10 +1,10 @@
+goog.require('ol.BrowserFeature');
 goog.require('ol.Map');
 goog.require('ol.RendererHint');
 goog.require('ol.View2D');
 goog.require('ol.layer.Tile');
 goog.require('ol.proj');
 goog.require('ol.source.BingMaps');
-goog.require('ol.webgl');
 
 
 function setResetHueButtonHTML() {
@@ -16,7 +16,7 @@ function setResetSaturationButtonHTML() {
       layer.getSaturation().toFixed(2) + ')';
 }
 
-if (!ol.webgl.SUPPORTED) {
+if (!ol.BrowserFeature.HAS_WEBGL) {
   var info = document.getElementById('no-webgl');
   /**
    * display error message
diff --git a/examples/side-by-side.js b/examples/side-by-side.js
index afa8425cc7..304117071d 100644
--- a/examples/side-by-side.js
+++ b/examples/side-by-side.js
@@ -1,9 +1,9 @@
+goog.require('ol.BrowserFeature');
 goog.require('ol.Map');
 goog.require('ol.RendererHint');
 goog.require('ol.View2D');
 goog.require('ol.layer.Tile');
 goog.require('ol.source.MapQuestOpenAerial');
-goog.require('ol.webgl');
 
 
 var domMap = new ol.Map({
@@ -20,7 +20,7 @@ var domMap = new ol.Map({
   })
 });
 
-if (ol.webgl.SUPPORTED) {
+if (!ol.BrowserFeature.HAS_WEBGL) {
   var webglMap = new ol.Map({
     renderer: ol.RendererHint.WEBGL,
     target: 'webglMap'
diff --git a/src/ol/animation.exports b/src/ol/animation.exports
index f887f38c28..5cab49819d 100644
--- a/src/ol/animation.exports
+++ b/src/ol/animation.exports
@@ -1,4 +1,4 @@
-@exportSymbol ol.animation.bounce ol.animation.bounce
-@exportSymbol ol.animation.pan ol.animation.pan
-@exportSymbol ol.animation.rotate ol.animation.rotate
-@exportSymbol ol.animation.zoom ol.animation.zoom
+@exportSymbol ol.animation.bounce
+@exportSymbol ol.animation.pan
+@exportSymbol ol.animation.rotate
+@exportSymbol ol.animation.zoom
diff --git a/src/ol/browserfeature.exports b/src/ol/browserfeature.exports
index 45cb41ac8a..832c611d89 100644
--- a/src/ol/browserfeature.exports
+++ b/src/ol/browserfeature.exports
@@ -1,3 +1,7 @@
 @exportSymbol ol.BrowserFeature
 @exportProperty ol.BrowserFeature.DEVICE_PIXEL_RATIO
+@exportProperty ol.BrowserFeature.HAS_CANVAS
+@exportProperty ol.BrowserFeature.HAS_DEVICE_ORIENTATION
+@exportProperty ol.BrowserFeature.HAS_GEOLOCATION
 @exportProperty ol.BrowserFeature.HAS_TOUCH
+@exportProperty ol.BrowserFeature.HAS_WEBGL
diff --git a/src/ol/browserfeature.js b/src/ol/browserfeature.js
index a0a428c3c9..c7a30bb633 100644
--- a/src/ol/browserfeature.js
+++ b/src/ol/browserfeature.js
@@ -1,5 +1,9 @@
 goog.provide('ol.BrowserFeature');
 
+goog.require('goog.dom');
+goog.require('goog.dom.TagName');
+goog.require('ol.webgl');
+
 
 /**
  * @define {boolean} Assume touch.
@@ -8,22 +12,111 @@ ol.ASSUME_TOUCH = false;
 
 
 /**
- * @type {Object}
+ * @define {boolean} Whether to enable canvas.
  */
-ol.BrowserFeature = {
-  /**
-   * The ratio between physical pixels and device-independent pixels
-   * (dips) on the device (`window.devicePixelRatio`).
-   * @type {number}
-   */
-  DEVICE_PIXEL_RATIO: goog.global.devicePixelRatio || 1,
+ol.ENABLE_CANVAS = true;
 
-  /**
-   * True if browser supports touch events.
-   * @type {boolean}
-   */
-  HAS_TOUCH: ol.ASSUME_TOUCH ||
-      (goog.global.document &&
-      'ontouchstart' in goog.global.document.documentElement) ||
-      !!(goog.global.navigator.msPointerEnabled)
-};
+
+/**
+ * @define {boolean} Whether to enable DOM.
+ */
+ol.ENABLE_DOM = true;
+
+
+/**
+ * @define {boolean} Whether to enable WebGL.
+ */
+ol.ENABLE_WEBGL = true;
+
+
+/**
+* The ratio between physical pixels and device-independent pixels
+* (dips) on the device (`window.devicePixelRatio`).
+* @const {number}
+* @todo stability experimental
+*/
+ol.BrowserFeature.DEVICE_PIXEL_RATIO = goog.global.devicePixelRatio || 1;
+
+
+/**
+ * True if browser supports Canvas.
+ * @const {boolean}
+ * @todo stability experimental
+ */
+ol.BrowserFeature.HAS_CANVAS = ol.ENABLE_CANVAS && (
+    /**
+     * @return {boolean} Canvas supported.
+     */
+    function() {
+      if (!('HTMLCanvasElement' in goog.global)) {
+        return false;
+      }
+      try {
+        var canvas = /** @type {HTMLCanvasElement} */
+            (goog.dom.createElement(goog.dom.TagName.CANVAS));
+        return !goog.isNull(canvas.getContext('2d'));
+      } catch (e) {
+        return false;
+      }
+    })();
+
+
+/**
+ * Indicates if DeviceOrientation is supported in the user's browser.
+ * @const {boolean}
+ * @todo stability experimental
+ */
+ol.BrowserFeature.HAS_DEVICE_ORIENTATION =
+    'DeviceOrientationEvent' in goog.global;
+
+
+/**
+ * True if browser supports DOM.
+ * @const {boolean}
+ * @todo stability experimental
+ */
+ol.BrowserFeature.HAS_DOM = ol.ENABLE_DOM;
+
+
+/**
+ * Is HTML5 geolocation supported in the current browser?
+ * @const {boolean}
+ * @todo stability experimental
+ */
+ol.BrowserFeature.HAS_GEOLOCATION = 'geolocation' in goog.global.navigator;
+
+
+/**
+* True if browser supports touch events.
+* @const {boolean}
+ * @todo stability experimental
+*/
+ol.BrowserFeature.HAS_TOUCH = ol.ASSUME_TOUCH ||
+    (goog.global.document &&
+    'ontouchstart' in goog.global.document.documentElement) ||
+    !!(goog.global.navigator.msPointerEnabled);
+
+
+/**
+ * True if browser supports WebGL.
+ * @const {boolean}
+ * @todo stability experimental
+ */
+ol.BrowserFeature.HAS_WEBGL = ol.ENABLE_WEBGL && (
+    /**
+     * @return {boolean} WebGL supported.
+     */
+    function() {
+      if (!('WebGLRenderingContext' in goog.global)) {
+        return false;
+      }
+      try {
+        var canvas = /** @type {HTMLCanvasElement} */
+            (goog.dom.createElement(goog.dom.TagName.CANVAS));
+        return !goog.isNull(ol.webgl.getContext(canvas, {
+          failIfMajorPerformanceCaveat: true
+        }));
+      } catch (e) {
+        return false;
+      }
+    })();
diff --git a/src/ol/canvas/canvas.js b/src/ol/canvas/canvas.js
deleted file mode 100644
index 99bcd99217..0000000000
--- a/src/ol/canvas/canvas.js
+++ /dev/null
@@ -1,27 +0,0 @@
-goog.provide('ol.canvas');
-
-goog.require('goog.dom');
-goog.require('goog.dom.TagName');
-
-
-/**
- * Is supported.
- * @const
- * @type {boolean}
- */
-ol.canvas.SUPPORTED = (
-    /**
-     * @return {boolean} Canvas supported.
-     */
-    function() {
-      if (!('HTMLCanvasElement' in goog.global)) {
-        return false;
-      }
-      try {
-        var canvas = /** @type {HTMLCanvasElement} */
-            (goog.dom.createElement(goog.dom.TagName.CANVAS));
-        return !goog.isNull(canvas.getContext('2d'));
-      } catch (e) {
-        return false;
-      }
-    })();
diff --git a/src/ol/control/controldefaults.exports b/src/ol/control/controldefaults.exports
index 0023131772..a9c4315ac3 100644
--- a/src/ol/control/controldefaults.exports
+++ b/src/ol/control/controldefaults.exports
@@ -1 +1 @@
-@exportSymbol ol.control.defaults ol.control.defaults
+@exportSymbol ol.control.defaults
diff --git a/src/ol/deviceorientation.exports b/src/ol/deviceorientation.exports
index b0a0b9eaf2..4496aa24b9 100644
--- a/src/ol/deviceorientation.exports
+++ b/src/ol/deviceorientation.exports
@@ -1,2 +1 @@
 @exportSymbol ol.DeviceOrientation
-@exportSymbol ol.DeviceOrientation.SUPPORTED ol.DeviceOrientation.SUPPORTED
diff --git a/src/ol/deviceorientation.js b/src/ol/deviceorientation.js
index 000494963b..aab556ebef 100644
--- a/src/ol/deviceorientation.js
+++ b/src/ol/deviceorientation.js
@@ -3,6 +3,7 @@ goog.provide('ol.DeviceOrientationProperty');
 
 goog.require('goog.events');
 goog.require('goog.math');
+goog.require('ol.BrowserFeature');
 goog.require('ol.Object');
 
 
@@ -111,15 +112,6 @@ ol.DeviceOrientation.prototype.disposeInternal = function() {
 };
 
 
-/**
- * Indicates if DeviceOrientation is supported in the user's browser.
- * @const
- * @type {boolean}
- * @todo stability experimental
- */
-ol.DeviceOrientation.SUPPORTED = 'DeviceOrientationEvent' in goog.global;
-
-
 /**
  * @private
  * @param {goog.events.BrowserEvent} browserEvent Event.
@@ -230,7 +222,7 @@ goog.exportProperty(
  * @private
  */
 ol.DeviceOrientation.prototype.handleTrackingChanged_ = function() {
-  if (ol.DeviceOrientation.SUPPORTED) {
+  if (ol.BrowserFeature.HAS_DEVICE_ORIENTATION) {
     var tracking = this.getTracking();
     if (tracking && goog.isNull(this.listenerKey_)) {
       this.listenerKey_ = goog.events.listen(goog.global, 'deviceorientation',
diff --git a/src/ol/geolocation.exports b/src/ol/geolocation.exports
index 398f9fefea..adc26edc01 100644
--- a/src/ol/geolocation.exports
+++ b/src/ol/geolocation.exports
@@ -1,2 +1 @@
 @exportSymbol ol.Geolocation
-@exportSymbol ol.Geolocation.SUPPORTED ol.Geolocation.SUPPORTED
diff --git a/src/ol/geolocation.js b/src/ol/geolocation.js
index ffb7a11638..36ff83906c 100644
--- a/src/ol/geolocation.js
+++ b/src/ol/geolocation.js
@@ -6,6 +6,7 @@ goog.provide('ol.GeolocationProperty');
 goog.require('goog.events');
 goog.require('goog.events.EventType');
 goog.require('goog.math');
+goog.require('ol.BrowserFeature');
 goog.require('ol.Coordinate');
 goog.require('ol.Object');
 goog.require('ol.proj');
@@ -140,7 +141,7 @@ ol.Geolocation.prototype.handleProjectionChanged_ = function() {
  * @private
  */
 ol.Geolocation.prototype.handleTrackingChanged_ = function() {
-  if (ol.Geolocation.SUPPORTED) {
+  if (ol.BrowserFeature.HAS_GEOLOCATION) {
     var tracking = this.getTracking();
     if (tracking && !goog.isDef(this.watchId_)) {
       this.watchId_ = goog.global.navigator.geolocation.watchPosition(
@@ -155,15 +156,6 @@ ol.Geolocation.prototype.handleTrackingChanged_ = function() {
 };
 
 
-/**
- * Is HTML5 geolocation supported in the current browser?
- * @const
- * @type {boolean}
- * @todo stability experimental
- */
-ol.Geolocation.SUPPORTED = 'geolocation' in goog.global.navigator;
-
-
 /**
  * @private
  * @param {GeolocationPosition} position position event.
diff --git a/src/ol/interaction/interactiondefaults.exports b/src/ol/interaction/interactiondefaults.exports
index 2ab5e46392..6a928864a2 100644
--- a/src/ol/interaction/interactiondefaults.exports
+++ b/src/ol/interaction/interactiondefaults.exports
@@ -1 +1 @@
-@exportSymbol ol.interaction.defaults ol.interaction.defaults
+@exportSymbol ol.interaction.defaults
diff --git a/src/ol/map.js b/src/ol/map.js
index 98ea98d24e..02c53fa5d5 100644
--- a/src/ol/map.js
+++ b/src/ol/map.js
@@ -58,34 +58,13 @@ goog.require('ol.layer.Group');
 goog.require('ol.proj');
 goog.require('ol.proj.common');
 goog.require('ol.renderer.Map');
-goog.require('ol.renderer.canvas');
 goog.require('ol.renderer.canvas.Map');
-goog.require('ol.renderer.dom');
 goog.require('ol.renderer.dom.Map');
-goog.require('ol.renderer.webgl');
 goog.require('ol.renderer.webgl.Map');
 goog.require('ol.structs.PriorityQueue');
 goog.require('ol.vec.Mat4');
 
 
-/**
- * @define {boolean} Whether to enable canvas.
- */
-ol.ENABLE_CANVAS = true;
-
-
-/**
- * @define {boolean} Whether to enable DOM.
- */
-ol.ENABLE_DOM = true;
-
-
-/**
- * @define {boolean} Whether to enable WebGL.
- */
-ol.ENABLE_WEBGL = true;
-
-
 /**
  * @enum {string}
  * @todo stability experimental
@@ -1298,17 +1277,17 @@ ol.Map.createOptionsInternal = function(options) {
   for (i = 0; i < n; ++i) {
     rendererHint = rendererHints[i];
     if (rendererHint == ol.RendererHint.CANVAS) {
-      if (ol.ENABLE_CANVAS && ol.renderer.canvas.SUPPORTED) {
+      if (ol.BrowserFeature.HAS_CANVAS) {
         rendererConstructor = ol.renderer.canvas.Map;
         break;
       }
     } else if (rendererHint == ol.RendererHint.DOM) {
-      if (ol.ENABLE_DOM && ol.renderer.dom.SUPPORTED) {
+      if (ol.BrowserFeature.HAS_DOM) {
         rendererConstructor = ol.renderer.dom.Map;
         break;
       }
     } else if (rendererHint == ol.RendererHint.WEBGL) {
-      if (ol.ENABLE_WEBGL && ol.renderer.webgl.SUPPORTED) {
+      if (ol.BrowserFeature.HAS_WEBGL) {
         rendererConstructor = ol.renderer.webgl.Map;
         break;
       }
diff --git a/src/ol/renderer/canvas/canvasrenderer.js b/src/ol/renderer/canvas/canvasrenderer.js
deleted file mode 100644
index 705283e37f..0000000000
--- a/src/ol/renderer/canvas/canvasrenderer.js
+++ /dev/null
@@ -1,11 +0,0 @@
-goog.provide('ol.renderer.canvas');
-
-goog.require('ol.canvas');
-
-
-/**
- * Is supported.
- * @const
- * @type {boolean}
- */
-ol.renderer.canvas.SUPPORTED = ol.canvas.SUPPORTED;
diff --git a/src/ol/renderer/dom/domrenderer.js b/src/ol/renderer/dom/domrenderer.js
deleted file mode 100644
index 4f2f98d043..0000000000
--- a/src/ol/renderer/dom/domrenderer.js
+++ /dev/null
@@ -1,9 +0,0 @@
-goog.provide('ol.renderer.dom');
-
-
-/**
- * Is supported.
- * @const
- * @type {boolean}
- */
-ol.renderer.dom.SUPPORTED = true;
diff --git a/src/ol/renderer/webgl/webglrenderer.js b/src/ol/renderer/webgl/webglrenderer.js
deleted file mode 100644
index eb1871d9a6..0000000000
--- a/src/ol/renderer/webgl/webglrenderer.js
+++ /dev/null
@@ -1,11 +0,0 @@
-goog.provide('ol.renderer.webgl');
-
-goog.require('ol.webgl');
-
-
-/**
- * Is supported.
- * @const
- * @type {boolean}
- */
-ol.renderer.webgl.SUPPORTED = ol.webgl.SUPPORTED;
diff --git a/src/ol/webgl/webgl.exports b/src/ol/webgl/webgl.exports
deleted file mode 100644
index 582ed7670e..0000000000
--- a/src/ol/webgl/webgl.exports
+++ /dev/null
@@ -1 +0,0 @@
-@exportSymbol ol.webgl.SUPPORTED ol.webgl.SUPPORTED
diff --git a/src/ol/webgl/webgl.js b/src/ol/webgl/webgl.js
index 8720d354d6..6b39a1edc7 100644
--- a/src/ol/webgl/webgl.js
+++ b/src/ol/webgl/webgl.js
@@ -1,9 +1,6 @@
 goog.provide('ol.webgl');
 goog.provide('ol.webgl.WebGLContextEventType');
 
-goog.require('goog.dom');
-goog.require('goog.dom.TagName');
-
 
 /**
  * @const
@@ -45,28 +42,3 @@ ol.webgl.getContext = function(canvas, opt_attributes) {
   }
   return null;
 };
-
-
-/**
- * Is supported.
- * @const
- * @type {boolean}
- */
-ol.webgl.SUPPORTED = (
-    /**
-     * @return {boolean} WebGL supported.
-     */
-    function() {
-      if (!('WebGLRenderingContext' in goog.global)) {
-        return false;
-      }
-      try {
-        var canvas = /** @type {HTMLCanvasElement} */
-            (goog.dom.createElement(goog.dom.TagName.CANVAS));
-        return !goog.isNull(ol.webgl.getContext(canvas, {
-          failIfMajorPerformanceCaveat: true
-        }));
-      } catch (e) {
-        return false;
-      }
-    })();