Which situation most likely would not be described as garish?

Choosing this option makes sense because the term "garish" refers to something that is excessively bright, flashy, or showy in a way that is considered unattractive or overly vulgar. Decorating with muted tones typically implies a softer, more subtle approach to aesthetics, which is quite the opposite of garishness. This suggests an intention to create an inviting and serene environment rather than one that draws attention through overwhelming colors or decorations.

In contrast, the other situations involve elements that are quite loud or attention-grabbing, such as neon outfits or blinding lights, which all align more closely with what people generally perceive as garish. These options illustrate an extravagance that often turns into a visual overload, emphasizing the stark difference between them and the idea of using muted tones for relaxation.