Using Operator Mono with Fira Code ligatures in Atom.

operator_with_ligatures.md

Using Operator Mono with Fira Code ligatures in Atom.

1. Open your Atom's Stylesheet
   

2. Put this css

atom-text-editor {
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  font-family: "Operator Mono";
  font-weight: 500;
  line-height: 1.7;
}

For Atom version < 1.13.x

atom-text-editor::shadow {
  .storage.type.function.arrow,
  .keyword.operator:not(.accessor),
  .punctuation.definition.entity.css {
    font-family: 'Fira Code';
  }

  .string.quoted,
  .string.regexp {
    -webkit-font-feature-settings: "liga" off, "calt" off;
  }
}

For Atom version >= 1.13.x

atom-text-editor.editor {
  .syntax--storage.syntax--type.syntax--function.syntax--arrow,
  .syntax--keyword.syntax--operator:not(.accessor),
  .syntax--punctuation.syntax--definition {
    font-family: "Fira Code";
  }

  .syntax--string.syntax--quoted,
  .syntax--string.syntax--regexp {
    -webkit-font-feature-settings: "liga" off, "calt" off;
  }
}

Save file and it's done.

---

Works fine with Javascript:

You are my hero. I hadn't even thought to do this. I use Operator Mono, and sorely miss my ligatures from Fira Code. Thank you so much! I already have a lot of tweaks in my CSS to user OM's script italics for more than just comments. Perfect addition.

How did you tweak yours please.?

@Phavor
Open Atom's stylesheet in Atom > Stylesheet..

Modify the sections to look like the following, the spans are the important part. You can find these class names by browsing through the editor in syntax of your choice using the developer tools (Option+Cmd+I).

`atom-text-editor.editor {

.syntax--storage.syntax--type.syntax--function.syntax--arrow,
.syntax--keyword.syntax--operator:not(.accessor),
.syntax--keyword.syntax--type,
.syntax--punctuation.syntax--definition {
font-family: "Fira Code";
}

span.syntax--keyword.syntax--control,
span.syntax--storage.syntax--type,
span.syntax--storage.syntax--modifier {
font-family: "Operator Mono";
font-style: italic;
}
`

You are my hero. I hadn't even thought to do this. I use Operator Mono, and sorely miss my ligatures from Fira Code. Thank you so much! I already have a lot of tweaks in my CSS to user OM's script italics for more than just comments. Perfect addition.

What syntax theme and TextMate rules are you using? It's look nice. Thanks.