Fix lint issues with color ints

app/src/main/java/acr/browser/lightning/database/BookmarkManager.java

@@ -154,7 +154,7 @@ public class BookmarkManager {
         @Override
         public void run() {
             final File tempFile = new File(mFilesDir,
-                    String.format("bm_%d.dat", System.currentTimeMillis()));
+                    String.format(Locale.US, "bm_%d.dat", System.currentTimeMillis()));
             final File bookmarksFile = new File(mFilesDir, FILE_BOOKMARKS);
             boolean success = false;
             BufferedWriter bookmarkWriter = null;

app/src/main/java/acr/browser/lightning/fragment/GeneralSettingsFragment.java

@@ -3,7 +3,6 @@
  */
 package acr.browser.lightning.fragment;
 
-import android.annotation.SuppressLint;
 import android.app.Activity;
 import android.content.DialogInterface;
 import android.os.Build;

app/src/main/java/acr/browser/lightning/utils/ThemeUtils.java

@@ -12,6 +12,7 @@ import android.graphics.PorterDuffColorFilter;
 import android.graphics.drawable.ColorDrawable;
 import android.graphics.drawable.Drawable;
 import android.support.annotation.AttrRes;
+import android.support.annotation.ColorInt;
 import android.support.annotation.DrawableRes;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
@@ -44,10 +45,12 @@ public class ThemeUtils {
         return color;
     }
 
+    @ColorInt
     public static int getIconLightThemeColor(@NonNull Context context) {
         return ContextCompat.getColor(context, R.color.icon_light_theme);
     }
 
+    @ColorInt
     public static int getIconDarkThemeColor(@NonNull Context context) {
         return ContextCompat.getColor(context, R.color.icon_dark_theme);
     }
@@ -92,7 +95,7 @@ public class ThemeUtils {
     }
 
     public static ColorDrawable getSelectedBackground(@NonNull Context context, boolean dark) {
-        final int color = (dark) ? ContextCompat.getColor(context, R.color.selected_dark) :
+        @ColorInt final int color = (dark) ? ContextCompat.getColor(context, R.color.selected_dark) :
                 ContextCompat.getColor(context, R.color.selected_light);
         return new ColorDrawable(color);
     }