Everset - VS Code Dark Theme
A theme optimized for JS/React, with colors inspired by forests during sunset. (Italic version included for script fonts such as Operator Mono, Dank Mono, etc.)
I personally enjoy subtle color variations in my themes, but if you're looking for a dark theme with a focus on accessibility, I'd recommend Sarah Drasner's Night Owl as an alternative.
Update: With the release of 1.0.0, We are finally done with the major changes to the color theme. It was tricky to add diversity to the "cool" colors side, but we've finally settled on a set we are happy with. If you are unhappy with the changes let me know, and if there is enough interest in keeping the original "cool" colors, I'll consider add a "classic" theme with them.
The font used in the screenshot is Input Mono, for anyone interested.