* Negative: "The casino was a garish spectacle of flashing lights and gaudy decorations."
* Neutral: "The artist's paintings were known for their garish colors and bold brushstrokes."
* Sarcastic: "Her new car is a garish shade of pink, but she seems to love it."
The word "garish" implies something is overly bright, showy, and possibly tasteless. It's often used in a negative context, but can also be used neutrally or even sarcastically.