Atom custom stylesheet

gistfile1.css

// make all JSON content dark blue
.editor[data-grammar="source json"] {
  color: @syntax-selection-color;

  // make all strings pastel white
  &> .string.quoted.json {
    color: @syntax-text-color;
  }

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

.modal.overlay {
  width: 800px;
  margin-left: -400px;
}

.fuzzy-finder {
  width: 784px;
}