This syntax theme is based off the official one dark by the Atom team.
I love the one-dark theme however I feel it is a little visually 'heavy' (especially of the amount of red coloring) this theme differs in the following ways:
red, giving pages are much 'lighter' feel
purpleis exclusively used for keywords - in
one-darkpurple is used for keywords but also for some other minor things
And here is the one-dark theme of the same code for comparison:
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.