Column Formatting Create Page Button

ColumnFormattingCreatePageButton.json

{
  "$schema": "https://developer.microsoft.com/json-schemas/sp/v2/column-formatting.schema.json",
  "elmType": "button",
  "customRowAction": {
    "action": "executeFlow",
    "actionParams": "{\"id\": \"yourflowid\"}"
  },
  "attributes": {
    "class": "ms-fontColor-themePrimary ms-fontColor-themeDarker--hover"
  },
  "style": {
    "border": "none",
    "background-color": "transparent",
    "cursor": "pointer"
  },
  "children": [
    {
      "elmType": "span",
      "attributes": {
        "iconName": "FileImage"
      },
      "style": {
        "padding-right": "6px"
      }
    },
    {
      "elmType": "span",
      "txtContent": ""
    }
  ]
}