Assuming that the mouse pointer is parallel to the display and that a light themes is used, the visual click zone is positioned below and to the right of the upper left corner.
E: correct content
E₂ (correction): The visual click zone should be more than 1 px², but it’s not misaligned.
Depending on the relative direction of the light and “camera”, the click point could vary. It wouldn’t be on the tip of the shadow unless the shadow was already directly below the tip of the pointer in line with the line of sight. More likely it would fall somewhere “between” the apparent position of shadow and pointer before clicking.