Github user robertdale commented on the issue:
https://github.com/apache/tinkerpop/pull/385
Once the color preference support is added in, I can make this a
preference. The line number can be '%n' so that it can be set with `:set
multiline.prompt "%n >"`. Should it have its own color or just use
input.prompt.color? So maybe wait until that merge happens first? Or I can
merge this in with color preference PR.
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