fix light theme for main page

app/src/main/java/org/schabi/newpipe/fragments/MainFragment.java

@@ -33,6 +33,7 @@ import org.schabi.newpipe.report.UserAction;
 import org.schabi.newpipe.util.Constants;
 import org.schabi.newpipe.util.KioskTranslator;
 import org.schabi.newpipe.util.NavigationHelper;
+import org.schabi.newpipe.util.ThemeHelper;
 
 import java.util.concurrent.ExecutionException;
 
@@ -85,15 +86,28 @@ public class MainFragment extends BaseFragment implements TabLayout.OnTabSelecte
 
         tabLayout.setupWithViewPager(viewPager);
 
+        if(ThemeHelper.isLightThemeSelected(getActivity())) {
+            tabLayout.setBackgroundColor(getResources().getColor(R.color.light_youtube_primary_color));
+        }
+
        if(PreferenceManager.getDefaultSharedPreferences(getActivity())
                 .getString(getString(R.string.main_page_content_key), getString(R.string.blank_page_key))
                 .equals(getString(R.string.subscription_page_key))) {
+           if(ThemeHelper.isLightThemeSelected(getActivity())) {
+               tabLayout.getTabAt(0).setIcon(R.drawable.ic_channel_black_24dp);
+           } else{
                tabLayout.getTabAt(0).setIcon(R.drawable.ic_channel_white_24dp);
+           }
+       } else {
+           if(ThemeHelper.isLightThemeSelected(getActivity())) {
+               tabLayout.getTabAt(0).setIcon(R.drawable.ic_whatshot_black_24dp);
+               tabLayout.getTabAt(1).setIcon(R.drawable.ic_channel_black_24dp);
            } else {
                tabLayout.getTabAt(0).setIcon(R.drawable.ic_whatshot_white_24dp);
                tabLayout.getTabAt(1).setIcon(R.drawable.ic_channel_white_24dp);
            }
        }
+    }
 
     /*//////////////////////////////////////////////////////////////////////////
     // Menu