diff --git a/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/FrequencyChart.java b/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/FrequencyChart.java
index 0b47cc000..8b6437638 100644
--- a/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/FrequencyChart.java
+++ b/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/FrequencyChart.java
@@ -300,8 +300,16 @@ public class FrequencyChart extends ScrollableChart
 
     private void initDateFormats()
     {
-        dfMonth = AndroidDateFormats.fromSkeleton("MMM");
-        dfYear = AndroidDateFormats.fromSkeleton("yyyy");
+        if (isInEditMode())
+        {
+            dfMonth = new SimpleDateFormat("MMM", Locale.getDefault());
+            dfYear = new SimpleDateFormat("yyyy", Locale.getDefault());
+        }
+        else
+        {
+            dfMonth = AndroidDateFormats.fromSkeleton("MMM");
+            dfYear = AndroidDateFormats.fromSkeleton("yyyy");
+        }
     }
 
     private void initRects()
@@ -326,5 +334,6 @@ public class FrequencyChart extends ScrollableChart
             frequency.put(new Timestamp(date), values);
             date.add(Calendar.MONTH, -1);
         }
+        maxFreq = getMaxFreq(frequency);
     }
 }
diff --git a/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/HistoryChart.java b/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/HistoryChart.java
index 9c6bde1d3..f2f0f3414 100644
--- a/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/HistoryChart.java
+++ b/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/HistoryChart.java
@@ -428,8 +428,16 @@ public class HistoryChart extends ScrollableChart
 
     private void initDateFormats()
     {
-        dfMonth = AndroidDateFormats.fromSkeleton("MMM");
-        dfYear = AndroidDateFormats.fromSkeleton("yyyy");
+        if (isInEditMode())
+        {
+            dfMonth = new SimpleDateFormat("MMM", Locale.getDefault());
+            dfYear = new SimpleDateFormat("yyyy", Locale.getDefault());
+        }
+        else
+        {
+            dfMonth = AndroidDateFormats.fromSkeleton("MMM");
+            dfYear = AndroidDateFormats.fromSkeleton("yyyy");
+        }
     }
 
     private void initRects()
diff --git a/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/ScoreChart.java b/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/ScoreChart.java
index 3aff9dab5..54975059b 100644
--- a/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/ScoreChart.java
+++ b/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/ScoreChart.java
@@ -410,9 +410,19 @@ public class ScoreChart extends ScrollableChart
 
     private void initDateFormats()
     {
-        dfYear = AndroidDateFormats.fromSkeleton("yyyy");
-        dfMonth = AndroidDateFormats.fromSkeleton("MMM");
-        dfDay = AndroidDateFormats.fromSkeleton("d");
+        if (isInEditMode())
+        {
+            dfMonth = new SimpleDateFormat("MMM", Locale.getDefault());
+            dfYear = new SimpleDateFormat("yyyy", Locale.getDefault());
+            dfDay = new SimpleDateFormat("d", Locale.getDefault());
+
+        }
+        else
+        {
+            dfMonth = AndroidDateFormats.fromSkeleton("MMM");
+            dfYear = AndroidDateFormats.fromSkeleton("yyyy");
+            dfDay = AndroidDateFormats.fromSkeleton("d");
+        }
     }
 
     private void initPaints()
diff --git a/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/StreakChart.java b/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/StreakChart.java
index 3a3b8130e..5020f85a4 100644
--- a/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/StreakChart.java
+++ b/uhabits-android/src/main/java/org/isoron/uhabits/activities/common/views/StreakChart.java
@@ -234,7 +234,7 @@ public class StreakChart extends View
         streaks = Collections.emptyList();
 
         dateFormat = DateFormat.getDateInstance(DateFormat.MEDIUM);
-        dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
+        if (!isInEditMode()) dateFormat.setTimeZone(TimeZone.getTimeZone("GMT"));
         rect = new RectF();
         baseSize = getResources().getDimensionPixelSize(R.dimen.baseSize);
     }
diff --git a/uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/show/views/BarCard.java b/uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/show/views/BarCard.java
index 8c0d05d42..135dc0a23 100644
--- a/uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/show/views/BarCard.java
+++ b/uhabits-android/src/main/java/org/isoron/uhabits/activities/habits/show/views/BarCard.java
@@ -107,6 +107,16 @@ public class BarCard extends HabitCard
             HabitsApplication app = (HabitsApplication) appContext;
             taskRunner = app.getComponent().getTaskRunner();
         }
+
+        if (isInEditMode()) initEditMode();
+    }
+
+    private void initEditMode()
+    {
+        int color = PaletteUtils.getAndroidTestColor(1);
+        title.setTextColor(color);
+        chart.setColor(color);
+        chart.populateWithRandomData();
     }
 
     private class RefreshTask implements Task
diff --git a/uhabits-android/src/main/res/layout/show_habit_preview.xml b/uhabits-android/src/main/res/layout/show_habit_preview.xml
index a40822a36..84eaa4a51 100644
--- a/uhabits-android/src/main/res/layout/show_habit_preview.xml
+++ b/uhabits-android/src/main/res/layout/show_habit_preview.xml
@@ -18,14 +18,14 @@
   ~ with this program. If not, see <http://www.gnu.org/licenses/>.
   -->
 
-<LinearLayout
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    >
+    android:orientation="vertical">
 
-    <org.isoron.uhabits.activities.habits.show.views.BarCard
-        android:id="@+id/barCard"
+    <org.isoron.uhabits.activities.habits.show.views.ScoreCard
         style="@style/Card"
-        android:gravity="center"/>
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center" />
 </LinearLayout>
\ No newline at end of file