So this is probably the fullscreen glow option which is basically trying to reflect things that are farther away from the bright image, if you want to remove any glow/reflection far away from the image then turn the fullscreen glow to 0.
Also the diagonal highlights in the corners get their color from the full screen glow pass, so they get reflection from farther away & blurred a lot, more solid looking which seems to be more how it works in the real world.
I’ll find some way for the noise to be removed if not desired and possibly reduce the noise in the corner if that looks better.
The reason you might have had to update your shaders is because I don’t copy ALL of the files from guest or easymode, only the ones which require changes. It’s a good question if I should actually copy all these files and update them all every time those shaders change. In general the idea of duplicating a bunch of code kind of disturbs me. So I’m on the fence if I should actually copy and include files to avoid any mismatch.
I’ll eventually figure out why it is taking longer to load (I noticed this too) when I start trying to optimize more.