Why are my icons uploading as .jpg files?, They're saved on my computer as .png files. Options

[heyohereiam]

I recently submitted a few icons to the site. All the icons on my computer are saved as .png files, I never save any still images as anything else unless they're really rough images that I only keep for ideas. For some reason when I uploaded these icons they were transformed into .jpg files, meaning they lost a lot of their quality. Is there a reason this is happening or a way to stop it? Thanks for any help

[heyohereiam]

^ Okay, thanks. I didn't realise that before It makes sense CB converts them.


But also, something else I've been wondering. I'll use Alex Evans' photos as an example: how come some of the graphics people make with his photos get accepted and others don't? Like, I made avatars and they got denied because he has a deviantart, and I completely understand the reasoning for that, yet a few days earlier banners were sumbitted using his photos and they got accepted?