support for .heic images

[foxharp]

Support for the .heic format would be really nice to have. All my friends with iphones keep sending me pictures that are hard to view. ;-)

(I realize this project seems to be inactive, but last time I searched, it was the best/fastest way to view an image, especially using X11 forwarding across an ssh connection.)

[BwackNinja]

This is not a Viewnior issue. It's gdk-pixbuf that's doing image loading. Install https://github.com/strukturag/libheif and you'll be able to view .heic images.

[foxharp]

Thank you. I figured this out some time ago, and should have come back to say so. My apologies!