number-heart-in-heart-site-theme-color

{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
  "elmType": "div",
  "children": [
    {
      "elmType": "div",
      "style": {
        "display": "flex",
        "flex-direction": "row",
        "align-items": "center",
        "margin": "3px",
        "white-space": "nowrap"
      },
      "children": [
        {
          "elmType": "div",
          "style": {
            "position": "relative",
            "height": "60px",
            "width": "100px"
          },
          "attributes": {
            "class": "ms-fontColor-themePrimary"
          },
          "children": [
            {
              "elmType": "div",
              "style": {
                "position": "absolute",
                "height": "100%",
                "width": "100%",
                "display": "flex",
                "align-items": "center",
                "justify-content": "center"
              },
              "children": [
                {
                  "elmType": "svg",
                  "style": {
                    "fill": "currentColor",
                    "fill-opacity": "10%",
                    "height": "100%"
                  },
                  "attributes": {
                    "viewBox": "0 0 100 100"
                  },
                  "children": [
                    {
                      "elmType": "path",
                      "attributes": {
                        "d": "M 10,30 A 20,20 0,0,1 50,30 A 20,20 0,0,1 90,30 Q 90,60 50,90 Q 10,60 10,30 z"
                      }
                    }
                  ]
                }
              ]
            },
            {
              "elmType": "div",
              "style": {
                "position": "absolute",
                "height": "100%",
                "width": "100%",
                "display": "flex",
                "align-items": "center",
                "justify-content": "center"
              },
              "children": [
                {
                  "elmType": "svg",
                  "style": {
                    "fill": "currentColor",
                    "height": "=if(@currentField > 1 , '100%', if(@currentField < 0 , '0%' , @currentField.displayValue))"
                  },
                  "attributes": {
                    "viewBox": "0 0 100 100"
                  },
                  "children": [
                    {
                      "elmType": "path",
                      "attributes": {
                        "d": "M 10,30 A 20,20 0,0,1 50,30 A 20,20 0,0,1 90,30 Q 90,60 50,90 Q 10,60 10,30 z"
                      }
                    }
                  ]
                }
              ]
            }
          ]
        },
        {
          "elmType": "div",
          "txtContent": "@currentField.displayValue",
          "style": {
            "font-size": "18px",
            "font-weight": "bold"
          }
        }
      ]
    }
  ]
}