Ariake is an atom syntax theme inspired by Japanese traditional colors and the poetry composed 1000 years ago.
"有明の つれなく見えし 別れより 暁ばかり 憂きものはなし" - Mibu no Tadamine (壬生忠岑)
"Since I saw the moon in dawn when you said good-bye, My heart aches every time I see it again."
This theme is also a fork of Ariake Dark Syntax theme.
The font used in the screenshot is Fira Mono.
There is also a matching UI theme.
Search for ariake-light-syntax in Settings > Install > Themes.
Or install it directly using the command:
apm install ariake-light-syntax
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.