Sorry, this application is not available on your current operating system.
Try downloading it from a desktop or laptop.
Or install it from the command line:
$ wget https://downloads.hydraulic.dev/jfxcentral2/debian/jfxcentral_2.0.72-111_amd64.deb
$ sudo apt install ./jfxcentral_2.0.72-111_amd64.deb