Neumorphism is a visual style that uses soft shadows and highlights to make buttons or panels seem raised from—or pressed into—the background. The surface and controls often use similar colors, so the shadows create most of the depth.
Imagine a button that looks gently molded from the same soft material as the screen behind it. This can feel calm and tactile.
If the shadow is too subtle, people may not see where a button begins or ends. Keep labels and important controls easy to distinguish, especially for people who have trouble seeing low-contrast details.