This is the best solution I have come up with for night flight with the Laminar G1000 PFD. Get Actual Window Manager's Actual Transparent Window, and use it to change a Notepad window to about 60% transparency. Then size the window and place it over the PFD. Activate "ghosting", so that the Notepad window is click-through. This will get the PFD dim enough so that your night vision can see more out the windshield.
Regards, TS