Google CustomSearch ignores imgType?

Question

It would seem that using the google CSE api always ignores my imgType attribute, even through their official API test page.

My request is:

{
    "q": "Maimi Yajima",
    "cx": "014585077406021600032:tu4nwhtmr5q",
    "searchType": "image",
    "imgType": "clipart"
}

But even when changing the imgType i'm always getting back the same results.

Where am I wrong?

Answer 1

Though not confirmed by Google, this is most possibly a bug, or Google intentionally broke the imgType parameter without updating their documentation.