Update GH Labels

updateGH.js

/**
/**
 * Inspired by @Isaddo original script: https://gist.github.com/Isaddo/7efebcb673a0957b9c6f07cd14826ea4
 * Adds descriptions per @NillerMedDild https://gist.github.com/Isaddo/7efebcb673a0957b9c6f07cd14826ea4#gistcomment-2715349
 * Updated with https://gist.github.com/Isaddo/7efebcb673a0957b9c6f07cd14826ea4#gistcomment-3611299
*/
function updateLabel(label) {
  var flag = false;
  [].slice
    .call(document.querySelectorAll(".js-labels-list-item"))
    .forEach(function (element) {
      if (
        element.querySelector(".js-label-link").textContent.trim() === label.name
      ) {
        flag = true;
        element.querySelector(".js-edit-label").click();
        element.querySelector(".js-new-label-name-input").value = label.name;
        element.querySelector(".js-new-label-description-input").value = label.description;
        element.querySelector(".js-new-label-color-input").value = "#" + label.color;
        element.querySelector(".js-edit-label-cancel ~ .btn-primary").click();
      }
    });
  return flag;
}

function addNewLabel(label) {
  document.querySelector(".js-new-label-name-input").value = label.name;
  document.querySelector(".js-new-label-description-input").value = label.description;
  document.querySelector(".js-new-label-color-input").value = "#" + label.color;
  document.querySelector(".js-details-target ~ .btn-primary").disabled = false;
  document.querySelector(".js-details-target ~ .btn-primary").click();
}

function addLabel(label) {
  if (!updateLabel(label)) addNewLabel(label);
}

// Your labels between [ and ]
[
    {
        "name": "Area: API",
        "description": "Issue is related to the API",
        "color": "e99695"
    },
    {
        "name": "Type: Support.",
        "description": "(silent) Issue is a support request. Bot WILL NOT auto close and give a message.",
        "color": "b91de0"
    }
]
.forEach(function (label) {
  addLabel(label);
});