Support for popular image formats in the flatpak
As Loupe intends to replace EOG as the core image viewer, it would be a downgrade if it lost support for certain image formats that were supported by EOG but aren't included in core GdkPixbuf.
Specifically,
- WebP, which would be most important for web developers, but due to its growing popularity many regular users as well.
- HEIC, which is the default image format used by iPhones.
I feel like not packaging the libraries required for loading these image types would inconvenience a great number of people, especially those switching from EOG.