Good news! Recent releases of Windows Terminal, versions 1.22+, have support for Sixel graphics. So "let's set it up in in vifm," I said. Using ImageMagick, I was able to display an image in the terminal:

I put this in my vifmrc:

fileviewer {*.bmp,*.jpg,*.jpeg,*.png,*.gif,*.xpm},<image/*>
         \ magick %"c -resize %pw sixel:-

But the preview pane isn't displaying the output correctly:

Edit
My environment is:

• Windows 10
• Windows Terminal 1.22.10352.0
• Powershell 7.4.7
• vifm 0.12.1