What's up with the phone case that looks shaded, darker in color and has a bluish metallic sheen?

This oil painting flower case comes with a blue laser effect that gives the case irdescent colors and makes the pattern more eye-catching as well, hence the inevitable color difference.

Is the pattern of this case 3D?

The pattern of this phone case is not 3D, it just looks 3D. That's because cute oil painting floral pattern of this case printed by IMD with holographic effect for a more realistic feel.

What scenarios is this case suitable for?