What image viewer does /g/ use? I use Viewnior since it's the only image viewer besides the heavy GwenView I've found where you can push a number key to scale it in a way fitting for viewing pixelart. It has unfortunetly not had a new version since 2015 though.
Irfanview
>>59941111
My own fork of jpegview.
sxiv, but I have feh to set wallpapers.
Xviewer
catimg
Impression Eyes. Having no UI and being a fast jpg/png/bmp/gif viewer that can handle transparency and staying on top of other windows is fun.
>>59941111
The default Ubuntu one is good. You should use nomacs on windows.
>>59941111
>Viewnior
my nigga
and nice quads