4:3 or 5:4 Aspect ratio or custom resolution

[Par7s]

Are custom resolutions supported? I'm playing on a 5:4 monitor and was hoping that an old/classic inspired game also supported classic resolutions and aspect ratios. Is there anyway I can change this? Any help is greatly appreciated.

weirdly, there is a crt filter and I thought square aspect ratios are okay. Thanks!

[Clxmj]

You can change it to from Windowed to Full screen then stretch the window to how you like, unfortunately it doesn't save your last known window so you gotta resize it every time you boot the game up..