Default swipe icon colors

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

@@ -20,6 +20,7 @@ package eu.faircode.email;
 */
 
 import android.content.Context;
+import android.graphics.Color;
 import android.text.TextUtils;
 
 import androidx.annotation.NonNull;
@@ -325,6 +326,12 @@ public class EntityFolder extends EntityOrder implements Serializable {
         return R.drawable.twotone_folder_24;
     }
 
+    static Integer getDefaultColor(String type) {
+        if (EntityFolder.TRASH.equals(type) || EntityFolder.JUNK.equals(type))
+            return Color.RED;
+        return null;
+    }
+
     String getDisplayName(Context context) {
         return (display == null ? localizeName(context, name) : display);
     }