An Atom theme using Xcode's Low Key color palette. There's also a version of this theme for Vim.
This theme can be installed in Atom by going to the Themes section in the
Settings view (
cmd-,). Then activate it by selecting it from the
Syntax Themes drop-down menu.
This syntax theme complements the Unity UI theme for a native OS X appearance.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.