Fix chart colors

app/src/main/AndroidManifest.xml

@@ -40,7 +40,7 @@
         android:backupAgent=".HabitsBackupAgent"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/main_activity_title"
-        android:theme="@style/AppBaseThemeDark"
+        android:theme="@style/AppBaseTheme"
         android:supportsRtl="true">
 
         <meta-data

app/src/main/java/org/isoron/uhabits/views/RingView.java

@@ -22,7 +22,6 @@ package org.isoron.uhabits.views;
 import android.annotation.SuppressLint;
 import android.content.Context;
 import android.graphics.Canvas;
-import android.graphics.Color;
 import android.graphics.Paint;
 import android.graphics.RectF;
 import android.text.Layout;
@@ -138,7 +137,8 @@ public class RingView extends View
         rect.offset((width - diameter) / 2, 0);
         canvas.drawArc(rect, -90, 360 * percentage, true, pRing);
 
-        pRing.setColor(Color.argb(255, 230, 230, 230));
+        int grey = UIHelper.getStyledColor(getContext(), R.attr.inactiveCheckmarkColor);
+        pRing.setColor(grey);
         canvas.drawArc(rect, 360 * percentage - 90 + 2, 360 * (1 - percentage) - 4, true, pRing);
 
         pRing.setColor(backgroundColor);

app/src/main/res/values-v21/styles.xml

@@ -35,7 +35,7 @@
 
         <item name="android:textColor">#606060</item>
         <item name="fadedTextColor">@color/grey_600</item>
-        <item name="inactiveCheckmarkColor">@color/grey_600</item>
+        <item name="inactiveCheckmarkColor">@color/grey_300</item>
         <item name="secondaryTextColor">@color/grey_800</item>
     </style>