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Note: This theme is deprecated. Take a look at tone-syntax that is somewhat similar.

DuoTone light

A double-hue syntax theme for Atom.

DuoTone light

DuoTone themes use only 2 hues (8 shades in total). It tones down less important parts (like punctuation and brackets) and highlights only the important ones. This leads to a more calm color scheme, but still lets you find the stuff you're looking for.

CSS in DuoTone light

HTML in DuoTone light

Language support

DuoTone themes are optimized for many languages:

C, Clojure, CoffeeScript, C#, CSS, GF Markdown, Go, Haskell, HTML, Java, JavaScript, JSON, Less, Perl, PHP, Python, Ruby, SASS, SCSS, Stylus, XML, YAML...

See the list of all languages.


Search for duotone-light-syntax in Atom's settings. Or install via CL:

apm install duotone-light-syntax


You can change the color scheme by going to Settings > Themes > duotone-light-syntax Theme (or the cog icon next to the theme picker). There you can customize the main and accent color.

Custom Colors


Here a list of all DuoTone themes. Or at least the ones that have the duotone keyword added. 😁

Issues and contributing

If you would like to create a new Issue or PR, please do so in:

  • this repo if it's about color changes, like in colors.less or syntax-variables.less.
  • DuoTone master template if it's about everything else, like in improving language support. Changes will trickle down into this theme too.