Smog gray gradient nail design picture

Quick answer：

This refers to a type of nail design featuring a gradient from smog gray to another color. Nail art designs like this often incorporate a smooth transition of colors to create an aesthetically pleasing effect. The term 'smog gray' refers to a color that resembles the grayish hue often seen in areas with poor air quality. Gradient nail designs are popular among fashion enthusiasts and can be found in various styles and colors.