Improvement for tif images and how they are handled?

Is there a way to improve how tif-images are handled?

If I search "All Mail" for a certain tif-image, and then single-click on a message, the image is not shown in the body of the email. Only a double-click/new window lets me see it, but only as an attachment, which needs to be opened externally. Also, the tab-view of this message does not let me see that there is an attachment.

Why is this? I think they should be handled the same way as jpg and show in the body of the email.

I am glad to see that the new Quick Look can handle it.