Based on our record, WindowTop seems to be a lot more popular than Pix. While we know about 14 links to WindowTop, we've tracked only 1 mention of Pix. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
I use Pix that comes stock with Linux Mint. It has a couple of different viewing modes, the one I think you want is file tree on the left and thumbnails on the main screen, you can drag and drop into folders. If you double click an image it goes to thumbnails on the left with the main part being the image. Source: about 1 year ago
Use something like this to do Picture in Picture as well https://windowtop.info/. Source: 12 months ago
WindowTop claims to put any window into Dark Mode. Source: about 1 year ago
WindowTop to allow always on top function. Source: over 1 year ago
Now there's probably no easy way to make everything exactly the same, but what you can do is use the software Windowtop (look at the video provided in the link) to have transparent windows for transparent overlays of previous screenshots to get things lined up so you don't have to use fades in photoshop like the above. This is a trial software so just get the project done in the temp length you're allowed to use... Source: over 1 year ago
There are a few programs out there that might be able to do it. The one I had the most success with on Windows is WindowTop. Recently it started being really buggy for me personally. I could reported the bugs and hopefully either got some help or some bug fixes. But for me it made more sense to write my own simple AutoHotKey script to put it all more under my own control with very minimal code to manage. I came up... Source: over 1 year ago
digiKam - Professional Photo Management with the Power of Open Source
DeskPins - DeskPins can be used to make any application topmost, that is, to keep it above all other windows.
Shotwell - Shotwell is an open source photo organizer designed for the GNOME desktop environment.
PinWin - Download PinWin - Pin On Top for free. Pin any window to be always on top of the screen. PinWin is a minimal Windows system tray application that allows you to pin any windows to the top of the screen with one click.
XnView MP - XnView is a free software that allows you to view, resize and edit your images. It supports more than 500 different formats!
Skybn Window On Top - Window on Top can be used to make any application topmost,that is to keep it above all other windows.