Sonic Channel staff on their blog:
It is Rouge spending Christmas displaying the expensive jewelry instead of ornaments on a tree!
She, who is also a treasure hunter, would probably enjoy displaying her favorite treasures in this way, wouldn’t she?
The big eyeholes, the trademarked heart, and the large jewelry seemed to be the hints, didn’t they? This time is also the quiz in December and more than half the people answered “Christmas tree,” and above 70% of the people answered “Rouge dressed in Santa suit.”