I don't see how the distinction adds any value to the conversation. Besides, if you think ugliness is subjective, you should say you consider pixo ugly, not that it is. This whole 'capitalized concept' is sounds very pretentious to me. Pixo is art, you may not like it, but there certainly is technical development built into it and some people find it pleasing or it wouldn't exist. Insisting in keeping it out of some definition of art just seems to me like a way to deride it in a way that you can justify intellectually. I don't like it. I find it very ugly. But I don't feel the need to create some art category it doesn't belong to in order to justify my opinion.