diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 4d98bfb..1696ec1 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -3,4 +3,4 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.2.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-all.zip
diff --git a/sample/src/main/java/com/nononsenseapps/filepicker/sample/MultimediaPickerFragment.java b/sample/src/main/java/com/nononsenseapps/filepicker/sample/MultimediaPickerFragment.java
index 576b41f..b64a546 100644
--- a/sample/src/main/java/com/nononsenseapps/filepicker/sample/MultimediaPickerFragment.java
+++ b/sample/src/main/java/com/nononsenseapps/filepicker/sample/MultimediaPickerFragment.java
@@ -40,7 +40,7 @@ import java.io.File;
  * To load the image I am using the super great Glide library
  * which only requires a single line of code in this file.
  */
-public class ImagePickerFragment extends FilePickerFragment {
+public class MultimediaPickerFragment extends FilePickerFragment {
 
     // Make sure these do not collide with LogicHandler.VIEWTYPE codes.
     // They are 1-2, so 11 leaves a lot of free space in between.
@@ -48,13 +48,13 @@ public class ImagePickerFragment extends FilePickerFragment {
     private static final int VIEWTYPE_IMAGE = 12;
 
     /**
-     * An extremely simple method for identifying images. This
+     * An extremely simple method for identifying multimedia. This
      * could be improved, but it's good enough for this example.
      *
      * @param file which could be an image
      * @return true if the file can be previewed, false otherwise
      */
-    protected boolean isImage(File file) {
+    protected boolean isMultimedia(File file) {
         //noinspection SimplifiableIfStatement
         if (isDir(file)) {
             return false;
@@ -78,7 +78,7 @@ public class ImagePickerFragment extends FilePickerFragment {
      */
     @Override
     public int getItemViewType(int position, File file) {
-        if (isImage(file)) {
+        if (isMultimedia(file)) {
             if (isCheckable(file)) {
                 return VIEWTYPE_IMAGE_CHECKABLE;
             } else {
diff --git a/sample/src/main/res/layout/activity_no_nonsense_file_picker.xml b/sample/src/main/res/layout/activity_no_nonsense_file_picker.xml
index eea8665..4b8823e 100644
--- a/sample/src/main/res/layout/activity_no_nonsense_file_picker.xml
+++ b/sample/src/main/res/layout/activity_no_nonsense_file_picker.xml
@@ -107,7 +107,8 @@
                     android:layout_gravity="left"
                     android:fontFamily="light"
                     android:gravity="center_vertical"
-                    android:text="Use light theme" />
+                    android:text="Use light theme"
+                    android:checked="true"/>
 
             </LinearLayout>
 
@@ -131,7 +132,7 @@
                 android:layout_marginTop="16dp"
                 android:fontFamily="light"
                 android:gravity="center"
-                android:text="Pick SD-card with image preview" />
+                android:text="Pick SD-card with multimedia preview" />
 
             <Button
                 android:id="@+id/button_ftp"