PicView win-x64 self-contained.zip and PicView win-x64 Framework-Dependent.zip are portable versions that doesn't require installation, just extract and run it.
PicView win-x64 Framework-Dependent.zip, is a nice and clean single .exe, but requires requires .NET Core 3.1 installed to run it.
Download PicView.msi if you want to install it.
Change-log
Add adjust zooming speed to settings window
Updated design and window behavior for the settings window and image effects window
Fix fullscreen gallery incorrectly showing after opening window after being minimized
Fixes to slideshow and fullscreen
Fix wrongly positioned window at startup behavior
Fix color for white theme for drag and drop preview
Fix incorrect tooltips
Improvements to light theme