{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
  "elmType": "div",
  "children": [
    {
      "elmType": "span",
      "style": {
        "display": "inline-block",
        "padding": "0 2px"
      },
      "attributes": {
        "iconName": "=if(@currentField >= 90, 'Emoji', if(@currentField >= 75, 'Emoji2', if(@currentField >= 60, 'EmojiNeutral', if(@currentField >= 0, 'EmojiDisappointed', 'Unknown'))))"
      }
    },
    {
      "elmType": "span",
      "txtContent": "@currentField"
    }
  ]
}