The product line matched, or null when the material has no line.
outcome
outcome:"generic"|"renamed"|"kept"|"unchanged"
"renamed": named after the line's preset for the chosen option.
"kept": already the name of a preset of the chosen kind for this
printer (e.g. a file saved in Snapmaker Orca), so the creator's
choice stays; its id and vendor are still written as that preset's.
"generic": the Snapmaker option, but Snapmaker makes no preset for
this line at this nozzle size, so the Generic one is used.
"unchanged": no preset of either kind fits (an unknown material, or
none at this nozzle size); the creator's name stays.
The product line matched, or null when the material has no line.