Hello, I have a question on the appearance of mirrored parts.

The question is, when I mirror the part, with any orientation, the appearance follows.

But when I mirror the part with opposite hand version, it does not follow the original.

To help you understand the question clearly, I brought some simple sample.

The part was set with the grey colour of appearance, and two extrude features are coloured with blue and green.

And top faces are cloured with red.

The box in the middle is the original, and left is just regular mirror, and the right is opposite hand version.

As they shown, the mirrored part follows its original appearance, but mirrored part only brings up "the appearance set on part" not on face or feature or body.

Would anybody can teach me how to make that opposite hand version follows the original part's appearance?