Refactoring

app/src/main/java/eu/faircode/email/ContactInfo.java

@@ -170,9 +170,9 @@ public class ContactInfo {
                 boolean identicons = prefs.getBoolean("identicons", false);
                 if (identicons) {
                     identicon = true;
-                    info.bitmap = Identicon.icon(key, dp, 5, dark);
+                    info.bitmap = IconHelper.generateIdenticon(key, dp, 5, dark);
                 } else
-                    info.bitmap = Identicon.letter(key, dp, dark);
+                    info.bitmap = IconHelper.generateLetterIcon(key, dp, dark);
             }
         }
 

app/src/main/java/eu/faircode/email/IconHelper.java

@@ -32,10 +32,10 @@ import androidx.core.graphics.ColorUtils;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 
-class Identicon {
+class IconHelper {
     private static final float MIN_LUMINANCE = 0.33f;
 
-    static Bitmap icon(@NonNull String email, int size, int pixels, boolean dark) {
+    static Bitmap generateIdenticon(@NonNull String email, int size, int pixels, boolean dark) {
         byte[] hash = getHash(email);
 
         int color = Color.argb(255, hash[0], hash[1], hash[2]);
@@ -63,7 +63,7 @@ class Identicon {
         return bitmap;
     }
 
-    static Bitmap letter(@NonNull String email, int size, boolean dark) {
+    static Bitmap generateLetterIcon(@NonNull String email, int size, boolean dark) {
         String text = null;
         for (int i = 0; i < email.length(); i++) {
             char kar = email.charAt(i);