diff --git a/app/src/main/java/org/isoron/uhabits/views/HabitScoreView.java b/app/src/main/java/org/isoron/uhabits/views/HabitScoreView.java
index 1579f29d3..fc841cb50 100644
--- a/app/src/main/java/org/isoron/uhabits/views/HabitScoreView.java
+++ b/app/src/main/java/org/isoron/uhabits/views/HabitScoreView.java
@@ -170,9 +170,10 @@ public class HabitScoreView extends ScrollableDataView implements HabitDataView
 
         columnHeight = 8 * baseSize;
 
+        float minStrokeWidth = UIHelper.dpToPixels(getContext(), 1);
         pGraph.setTextSize(baseSize * 0.5f);
         pGraph.setStrokeWidth(baseSize * 0.1f);
-        pGrid.setStrokeWidth(baseSize * 0.025f);
+        pGrid.setStrokeWidth(Math.min(minStrokeWidth,  baseSize * 0.05f));
 
         if(isTransparencyEnabled)
             initCache(width, height);
@@ -266,7 +267,7 @@ public class HabitScoreView extends ScrollableDataView implements HabitDataView
 
             rect.set(0, 0, baseSize, baseSize);
             rect.offset(k * columnWidth + (columnWidth - baseSize) / 2,
-                    paddingTop + columnHeight - height - columnWidth / 2);
+                    paddingTop + columnHeight - height - baseSize / 2);
 
             if (!prevRect.isEmpty())
             {
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 62c365e09..56c54ae0f 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -141,8 +141,8 @@
         <item name="cardBackgroundColor">@color/black</item>
 
         <item name="highContrastTextColor">@color/white</item>
-        <item name="mediumContrastTextColor">@color/white_ac</item>
-        <item name="lowContrastTextColor">@color/white_a0</item>
+        <item name="mediumContrastTextColor">@color/white_aa</item>
+        <item name="lowContrastTextColor">@color/white_a2</item>
 
         <item name="highContrastReverseTextColor">@color/white</item>
         <item name="mediumContrastReverseTextColor">@color/grey_500</item>