In the closet and wardrobe, you can directly modify the material of the door panel. The following takes the wardrobe as an example,

Modification of all door panel materials: Right-click on the blank wall - All Materials - Door Panel Material - Enter the material library - Under the directory of the general material library, select the material - Confirm the modification;

Modification of individual door panel materials: Right-click to select the door panel whose material needs to be modified. Move the mouse to "Material" and then left-click "Door Panel Material", and select the material.