The image viewer qimgv follows the principle of an uncluttered, simple, and easy-to-use UI that only shows elements when you need them. It is fully configurable, including themes and shortcuts. It also supports basic image editing, such as cropping, rotating, and resizing photos. The image viewer works on Windows, Linux, Ubuntu, and other GNU-related Operating Systems, such as Linux Mint, Manjaro, Fedora, OpenSUSE, Gentoo, Void Linux, and Alpine Linux. You can either download it as a package or compile it from the source.
qimgv can open some different formats via third-party image plugins. All of them are included in the Windows package. For any other package, download the Qt plugin by Novemesk.