As noticed when getting screenshots for the font scaling bug, when running GZDoom in a window in a widescreen ratio, the edges of the interpic and other full screen graphics have a border at the sides showing what ever was on the screen last.
Fortunately, to test the font scaling, I'd gone to a windowed mode to get some screenshots of views when the screenshot button doesn't work, and this flagged up the problem in this report.
To be clear, it happens in Windowed mode but does not seem to happen in full screen mode.
Problem slightly visible at the edges of the interpic:
Most obviously, the red numbers from the full screen HUD are visible in the bottom-right
After calling up the menu to display the yellow menu-fade and then dismissing it, the effect is much more obvious.
