Ligature fonts for atom

styles.less

atom-text-editor {
  font-family: 'Fira Code';
  font-style: normal;  
  text-rendering: optimizeLegibility;
}
atom-text-editor::shadow {
  .string.quoted,
  .string.regexp {
    -webkit-font-feature-settings: "liga" off, "calt" off;
  }
  .source.js.jsx > .keyword.control.flow.js,
  .storage, .type .function {
    vertical-align: baseline;
    font-family: 'flottflott';
    height: inherit;
    font-size: 1.5em;
    line-height: 1rem;
  }
  .source.js.jsx,
  .storage.type.function.arrow.js,
  .variable {
    font-family: 'Fira Code';
    font-style: normal;
  }
  .string.unquoted.js {
    color: #CDD3DE;
  }
  .entity.name {
    font-weight: bold;
  }
}

Some ligatures don't work as well.
The arrow function ligature seems to work only inside a div or span

Cool stuff.

I found this post on how to do the same in VS Code.

that is really cool! to bad i can't get html & css to do that as well

Hi! Ty for this styles! The ::shadow is coming up as deprecated. I changed my stylesheet to match their suggestions! I'm not sure how to use this so I'm going to put the changes below:

atom-text-editor {
  font-family: 'Fira Code';
  font-style: normal;
  text-rendering: optimizeLegibility;
}
atom-text-editor.editor {
  .syntax--string.syntax--quoted,
  .syntax--string.syntax--regexp {
    -webkit-font-feature-settings: "liga" off, "calt" off;
  }
  .syntax--source.syntax--js.syntax--jsx > .syntax--keyword.syntax--syntax--control.syntax--flow.syntax--js,
  .syntax--storage, .syntax--type .syntax--function {
    vertical-align: baseline;
    font-family: 'flottflott';
    height: inherit;
    font-size: 1.5em;
    line-height: 1rem;
  }
  .syntax--source.syntax--js.syntax--jsx,
  .syntax--storage.syntax--type.syntax--function.syntax--arrow.syntax--js,
  .syntax--variable {
    font-family: 'Fira Code';
    font-style: normal;
  }
  .syntax--string.syntax--unquoted.syntax--js {
    color: #CDD3DE;
  }
  .syntax--entity.syntax--name {
    font-weight: bold;
  }
}

any chance we can get an updated version for 2019 with Fira Code and BT? I can't seem to get mine to work.