tpl.json

{
  "attachments": [
    {
      "fallback": "All tests passed.",
      "color": "#36a64f",
      "pretext": "Test results",
      "title": "Mochawesome test report",
      "title_link": "URL to build",
      "fields": [
        {
          "title": "Tests: Pass number",
          "value": "Failures: Fail number",
          "short": false
        }
      ],
      "footer": ""
    },
    {
      "color": "#b3001b",
      "blocks": [
        {
          "type": "section",
          "fields": [
            {
              "type": "plain_text",
              "text": "Feature Name",
              "emoji": true
            },
            {
              "type": "mrkdwn",
              "text": "*Failure Count*"
            }
          ]
        }
      ]
    },
    {
      "color": "#36a64f",
      "blocks": [
        {
          "type": "section",
          "fields": [
            {
              "type": "plain_text",
              "text": "Feature Name",
              "emoji": true
            },
            {
              "type": "mrkdwn",
              "text": "*pass Count*"
            }
          ]
        }
      ]
    }
  ]
}