PWLscreen(Single&Multi)HD

There was nothing to do, and the soapy image in the MaksSP mod kept bothering me, compared to the original images from the internet. I tried replacing it, but the difference was microscopic. I implemented a principle that I used in my mod for the battle interface; thanks again to vova2112 for the helpful advice at the time: in the mod, I compressed a 1920x1080 image to 1366x768.
For comparison, take the mod LoadScreen5[1920x1080].h5u; I used the same image.