HTML tab:

<link href="https://cdn.jsdelivr.net/npm/normalize.css@8.0.1/normalize.min.css" rel="stylesheet" />
<script src="https://code.jquery.com/jquery-3.7.1.min.js" integrity="sha256-/JqT3SQfawRcv/BIHPThkBvs0OEvtFFmqPF/lYI/Cxo=" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/axios@1.6.7/dist/axios.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/gsap@3.12.5/dist/gsap.min.js"></script>

<link href="https://cdn.jsdelivr.net/npm/leagueofsummoner@2.3.5/dist/style.css" rel="stylesheet" />
<script type="module" src="https://cdn.jsdelivr.net/npm/leagueofsummoner@2.3.5/dist/widget.js"></script>

<div class="widget"><div>




Fields tab:

{
  "pauseDuration": {
    "type": "number",
    "label": "Swap pause duration (in seconds)",
    "value": 5
  },
  "transitionDuration": {
    "type": "number",
    "label": "Transition pause duration (in seconds)",
    "value": 3
  },
  "flipBorder": {
    "type": "dropdown",
    "label": "Flip border",
    "value": "true",
    "options": {
      "true": "Yes",
      "false": "No"
    }
  },
  "regionalRouting": {
    "type": "dropdown",
    "label": "Platform routing",
    "value": "EUW1",
    "options": {
      "BR1": "BR1",
      "EUN1": "EUN1",
      "EUW1": "EUW1",
      "JP1": "JP1",
      "KR": "KR",
      "LA1": "LA1",
      "LA2": "LA2",
      "NA1": "NA1",
      "OC1": "OC1",
      "TR1": "TR1",
      "PH2": "PH2",
      "SG2": "SG2",
      "TH2": "TH2",
      "TW2": "TW2",
      "VN2": "VN2"
    }
  },
  "platformRouting": {
    "type": "dropdown",
    "label": "Regional routing",
    "value": "EUROPE",
    "options": {
      "AMERICAS": "AMERICAS",
      "ASIA": "ASIA",
      "EUROPE": "EUROPE",
      "SEA": "SEA"
    }
  },
  "rankedQueue": {
    "type": "dropdown",
    "label": "Ranked queue",
    "value": "RANKED_SOLO_5x5",
    "options": {
      "RANKED_SOLO_5x5": "RANKED_SOLO_5x5",
      "RANKED_FLEX_SR": "RANKED_FLEX_SR"
    }
  },
  "matchesType": {
    "type": "dropdown",
    "label": "Select match type",
    "value": "ranked",
    "options": {
      "": "none",
      "ranked": "ranked",
      "normal": "normal",
      "tourney": "tourney",
      "tutorial": "tutorial"
    }
  },
  "gameName": {
    "type": "text",
    "label": "Game name",
    "value": null
  },
  "tagLine": {
    "type": "text",
    "label": "Tag line",
    "value": null
  },
  "API_KEY": {
    "type": "password",
    "label": "Personal API Key",
    "value": null
  }
}