As we're starting to make new graphics, their base screen resolution is aimed to be 1024xY instead of 800xY .
With that in mind, placeholder graphics from FO:T have been upscaled (without smoothing) in advance.
This is how Shelter currently looks, in the highest widescreen resolution it supports (1440x900). The graphics will change, but the relative dimensions of actors/scenery will remain the same.
Upscaling outdoor terrain was more problematic, so temporarily it has been reduced to one repeating tile (low priority).
(If you are interested,fullsize max resolution images are here, here and here)