ROM Properties v2.1 is released. ROM Properties is a shell extension adding the ability to display additional information to file managers. ROM Properties is currently available for Linux and Windows. This shell extension adds a few nice features to file browsers for managing video game ROM and disc images.

ROM Properties v2.1 Changelog:
Support for GTK4 UI frontends, e.g. Nautilus 43. Note that Nautilus 43 has significantly limited the functionality of property pages, so it's only partially implemented at the moment.
Right-click menu option for "Convert to PNG" for supported texture files, e.g. DDS and KTX.
rp-config now has a built-in update checker on the "About" tab.
KTX2: RG88 texture format and swizzling are now supported.

Download: ROM Properties v2.1
Source:Here