Formatting list row based on score column Office365

Question

I have created formatted the list as a gallery. using two columns such as created by and score.

I was wondering if there are any way to do change the background color based on the score achieved. For example if the score is less than 25 its red, less than 50 to 25 its blue, and less than 75 yellow and above 75 its green.

please see the code below.

    // JavaScript source code
{
  "height": 98,
  "width": 254,
  "hideSelection": false,
  "fillHorizontally": true,
  "formatter": {
    "elmType": "div",
    "attributes": {
      "class": "sp-card-container"
    },
    "children": [
      {
        "elmType": "button",
        "attributes": {
          "class": "sp-card-defaultClickButton"
        },
        "customRowAction": {
          "action": "defaultClick"
        }
      },
      {
        "elmType": "div",
        "attributes": {
          "class": "ms-bgColor-white sp-css-borderColor-neutralLight sp-card-borderHighlight sp-card-subContainer"
        },
        "children": [
          {
            "elmType": "div",
            "attributes": {
              "class": "sp-card-previewColumnContainer"
            },
            "children": [
              {
                "elmType": "div",
                "style": {
                  "display": "flex"
                },
                "children": [
                  {
                    "elmType": "p",
                    "attributes": {
                      "class": "sp-card-userEmptyText"
                    },
                    "txtContent": "=if(length([$Author]) == 0, '–', '')"
                  },
                  {
                    "forEach": "personIterator in [$Author]",
                    "elmType": "a",
                    "attributes": {
                      "class": "=if(loopIndex('personIterator') >= 5, 'sp-card-userContainer', 'sp-card-userContainer sp-card-keyboard-focusable')"
                    },
                    "style": {
                      "display": "=if(loopIndex('personIterator') >= 5, 'none', '')"
                    },
                    "children": [
                      {
                        "elmType": "img",
                        "defaultHoverField": "[$personIterator]",
                        "attributes": {
                          "src": "=getUserImage([$personIterator.email], 'S')",
                          "title": "[$personIterator.title]",
                          "class": "sp-card-userThumbnail"
                        },
                        "style": {
                          "display": "=if(length([$Author]) > 5 && loopIndex('personIterator') >= 4, 'none', '')"
                        }
                      },
                      {
                        "elmType": "div",
                        "attributes": {
                          "class": "ms-bgColor-neutralLight ms-fontColor-neutralSecondary sp-card-userOthers"
                        },
                        "style": {
                          "display": "=if(length([$Author]) > 5 && loopIndex('personIterator') == 4, '', 'none')"
                        },
                        "customCardProps": {
                          "formatter": {
                            "elmType": "div",
                            "attributes": {
                              "class": "sp-card-personCallout"
                            },
                            "children": [
                              {
                                "forEach": "personIterator in [$Author]",
                                "elmType": "div",
                                "attributes": {
                                  "class": "sp-card-userContainer sp-card-userCustomCard"
                                },
                                "style": {
                                  "display": "=if(loopIndex('personIterator') < 4, 'none', '')"
                                },
                                "children": [
                                  {
                                    "elmType": "img",
                                    "defaultHoverField": "[$personIterator]",
                                    "attributes": {
                                      "src": "=getUserImage([$personIterator.email], 'S')",
                                      "title": "[$personIterator.title]",
                                      "class": "sp-card-userThumbnail"
                                    }
                                  }
                                ]
                              }
                            ]
                          },
                          "openOnEvent": "hover"
                        },
                        "children": [
                          {
                            "elmType": "span",
                            "txtContent": "='+' + toString(length([$Author]) - (4))"
                          }
                        ]
                      }
                    ]
                  },
                  {
                    "elmType": "div",
                    "attributes": {
                      "class": "sp-card-userTitle"
                    },
                    "style": {
                      "display": "=if(length([$Author]) == 1, '', 'none')"
                    },
                    "txtContent": "[$Author.title]"
                  }
                ]
              }
            ]
          },
          {
            "elmType": "div",
            "attributes": {
              "class": "sp-card-lastTextColumnContainer"
            },
            "children": [
              {
                "elmType": "p",
                "attributes": {
                  "title": "=if ([$Score.displayValue] == '', '–', [$Score.displayValue])",
                  "class": "ms-fontColor-neutralPrimary sp-card-content sp-card-highlightedContent"
                },
                "txtContent": "=if ([$Score.displayValue] == '', '–', [$Score.displayValue])"
              }
            ]
          }
        ]
      }
    ]
  }
}

Answer 1

You can change the background-color based on value of [$Score] like below:

"background-color": "=if([$Score] < 25, 'red', if([$Score] > 25 && [$Score] < 50, 'blue', if([$Score] > 50 && [$Score] < 75, 'yellow', if([$Score] > 75, 'green', '' ))))"

Add this to style property of element where you want to apply background color.

Microsoft documentations:

1. Use column formatting to customize SharePoint
2. Use view formatting to customize SharePoint