To list packages that are installed and the newest versions of packages that are not installed but could be installed in this image, use the -a option.
$ pkg list -a '*toolkit' NAME (PUBLISHER) VERSION IFO image/nvidia/cg-toolkit 3.0.15-0.175.2.0.0.17.0 --- isvtoolkit (isvpub) 1.0 i-- system/dtrace/dtrace-toolkit 0.99-0.175.2.0.0.34.0 i--
This output indicates that the image/nvidia/cg-toolkit package is available and can be installed in this image.