My Atom-Editor styles

styles.less

/*
 * Darkens punctuation in JavaScript to reduce noise.
 * Also tweaks JSON colors.
 */

.tree-view {

}

.editor {
  .js {
    .comment, .brace, .terminator, .punctuation.definition.parameters,
    .punctuation.definition.comment, .scope {
      color: #444;
    }
  }
  .selection .region {
    background-color: #35312d;
  }
}

.editor .cursor {

}

// make all JSON content dark blue
.meta.structure.dictionary.json {
  color: #4183c4;

  // make all strings pastel white
  & > .string.quoted.json {
    color: #ddd;
  }

  // make an exception for all .string keys whose immediate parent is .value
  & > .value.json > .string.json {
    color: #E3A857;
  }
}