Reaper7! Your clever solution worked!!
I was tinkering with masks, but i was adding them within the image file itself which didn't work. I never thought to double-up the entries in the menu_1024.ini!
I doubled the entries for the OBSperiscope, periscope and TBT and re-numerated them as you suggested, and now all the corresponding screens are solid; no transparency of the background visible in even maximum gamma setting!
However; I'm unable to apply the fix for the binoculars and deckgun, despite doubling/re-numerating
all the binocular and deckgun entries and some of what i believe were relevant "black" background entries. These don't bother me as much anyway, as they are not as noticeable as the periscopes and TBT.
Needless to say, I am very thankful for all the input here! Hopefully this will help others as it has for me.
Happy Hunting!
