Minimap behavour change in 4.013?

[dm9991966]

I could swear that before the the 4.013 release the minimap behaved differently:

By default, the minimap was a few % less transparent than the rest of the map.

The Cntl or Alt key (I can't remember which now) made the minimap opaque, but drew it UNDER the Carb icons
Ctl-Alt made the minimap opaque and drew it ABOVE the Carb icons

Now:

The Alt key alone appears to do,
The Cntl key alone draws the minimap ABOVE the Carb icons
Ctl-Alt appears to make the minimap "darker" (not sure exactly how to explain, but the map takes on a slightly darker tint than with Cntl alone)

I don't remember making any option changes when I put 4.013 on.

Is there any way to get the opaque minimap to draw below the Carb icons now?

Thanks in advance...