| A key which uniquely identifies this entry. The ID should only contain alphanumeric/underscore/dot characters. When adding a custom appearance to an existing NPC, this should be prefixed with your mod ID like <samp>Example.ModId_AppearanceName</samp>. | | A key which uniquely identifies this entry. The ID should only contain alphanumeric/underscore/dot characters. When adding a custom appearance to an existing NPC, this should be prefixed with your mod ID like <samp>Example.ModId_AppearanceName</samp>. |