
3D icon of a rounded square button with slightly rounded corners and a glossy 3D material build. The background color is red with a smooth gradient of lighter red to darker red on one side. At the center of the button, there is a clean, white 'P' with the top extending into a stylized shape that represents a pin's head or a marker, and the 'P's body is rounded and fills the primary space inside the button. The 'P' has a matte white appearance and seems to be slightly elevated from the surface of the button, presenting a small shadow on the lower-left part where it touches the button, giving a slight 3D effect. The shape is seamless and the edges of the overall icon should be perfectly clean. White background, centered, no shadow, clean icon style, high detail, 3D render.