Those are thumbnails generated by your file explorer. Can you upload the actual files for a fair comparison?
EDIT: Nevermind, I see your point. I guess indexing is at fault. Antialiasing requires a rather large color palette compared to the original full-sized logo. Sorry about the confusion.
EDIT: Nevermind, I see your point. I guess indexing is at fault. Antialiasing requires a rather large color palette compared to the original full-sized logo. Sorry about the confusion.



![[Image: 4XODR.png]](http://i.imgur.com/4XODR.png)