Shouldn't the background be brighter?

A few days ago I had remixed this deck but I received a report from the creator of this deck telling me that others will think that he copied me but in reality the real creator of this deck is him. I wanted to say that I wanted to create another version of Super Mario but I remixed it based on his. Although in the past I already had a Super Mario project to post on Castle but then I never did it again because I still didn't quite know how the commands worked. This is why I remixed this deck and I hope the creator will read this comment. Good day.