SofiaXY (full name Sofia Xerneas-Yveltal, formerly U4H and #silhouettesforfree) is one of Aviel Peredo's common aliases. It is a combination of Princess Sofia from Disney's Sofia the First and two legendary Kalos Pokémon, Xerneas and Yveltal.
Aviel started making silhouettes in summer 2014 and revealed this logo in his Facebook cover.
The logo was made a la the 1997 Nest Entertainment logo. The slogan was added "Silhouettes made colorful and lovely" in Indy Script font.
In mid-2014, Aviel gave up making silhouettes and later created a logo for his current alias.
August 2014 - May 2015
The logo is often used in title screens of S-smiles series games as of mid-2016.
May 2015 - mid-2016
The name was simply shortened to SofiaXY before he revealed these logos on his birthday in May 2015. In celebration of Cytus 8.0 update in July 2015, Aviel added a temporary profile picture and cover pic just for the month. The full name "Sofia Xerneas-Yveltal" was still used in films, movie trailers and copyright credit.
This logo was made a la the Mandalay Entertainment logo in modified ATFAntique font. The new logo will be revealed in the new upcoming game, Sandara S. and will be featured in future releases. There exists an early variant where Sofia was replaced by Stefanie in S-Smiles version 2016.4.