Downloading PicView win-x64 self-contained.zip doesn't require installation, just extract and run it.
PicView win-x64 Framework-Dependent.zip, is a nice and clean single .exe file that requires requires .NET Core 3.1 installed to run it.
Change-log
Added color picking implementation
Improved performance when changing and loading images
Updated fullscreen to allow it to run contained gallery
Improved sizing for very small images
Improved zoom and panning
Improved handling when deleting images
Updated packages
Updated icon
Style updates
UI updates
Fixed folder dropping when no image is loaded
Styling updates for info window
Add blur to background on full-screen gallery
Resets rotation and unflips when changing images