Wow, I figured you applied something to the existing jalousie slats. That's impressive, I'll be it looks even better in person.
Out of curiosity, how do you think it will stand up to road vibration ?
I like that idea for making a bathroom window opaque but still letting light in.
If you need fridge heaters in future, don't get them from an RV supplier. I have to replace mine and found great prices on 110V ones at McMaster Carr's site.
Well, until you factor in shipping to Canada that is
Tossed my heater too - the thermocouple worked but the rest of the valve didn't.
Fortunately, foamies are pretty well insulated.
Mine's only 1" and still has holes to be closed up but a single mantle propane lantern heats it to comfortable from freezing temps in about an hour.