Set video mode
The video mode menu allows to choose whether the display is fullscreen or windowed, which

If you are unsure a video mode would display correctly, you can use the T key to test it for five seconds then return to the previous mode. If you are sure, however, the Enter key selects it normally.
Note: in 16:9 and 16:10 aspect ratios, the LB tag may appear next to some screen resolutions; this means that these modes are
- Fullscreen (Yes/No)
- fullscreen
- Chooses between windowed and fullscreen mode.
- Aspect ratio (4:3/16:9/16:10/All)
- menu_screenratios
- Selects which subset of screen resolutions is displayed below.
- Force aspect ratio (Off/4:3/16:9/16:10/5:4)
- vid_aspect
- Forces the chosen screen resolution to be considered as the selected aspect ratio, rather than the actual ratio.
- Enable 5:4 aspect ratio (Yes/No)
- vid_tft
- Enables the use of 5:4 aspect ratio.
Note that some aspect ratios are not what they mathematically should be. 320x200 are logically 16:10 ratios, not 4:3, but they are displayed as 4:3 ratios nonetheless. If 5:4 ratios are not enabled, resolutions such as 1280x1024 will be treated as 4:3 ratios as well. The explanation for these exception is that