semantics.json

[
  {
    "name": "columns",
    "type": "list",
    "label": "Columns",
    "importance": "high",
    "field": {
      "name": "column",
      "type": "group",
      "importance": "high",
      "fields": [
        {
          "name": "width",
          "label": "Width",
          "type": "number",
          "description": "Column width in percentage"
        },
        {
          "name": "paddings",
          "label": "Paddings",
          "type": "group",
          "description": "Column paddings",
          "fields": [
            {
              "name": "top",
              "type": "number",
              "label": "top",
              "default": 10
            },
            {
              "name": "right",
              "type": "number",
              "label": "right",
              "default": 10
            },
            {
              "name": "bottom",
              "type": "number",
              "label": "bottom",
              "default": 10
            },
            {
              "name": "left",
              "type": "number",
              "label": "left",
              "default": 10
            },
            {
              "name": "unit",
              "type": "select",
              "label": "Unit (px/em)",
              "options": [
                {
                  "value": "px",
                  "label": "px"
                },
                {
                  "value": "em",
                  "label": "em"
                }
              ],
              "default": "px"
            }
          ]
        },
        {
          "name": "content",
          "label": "Column",
          "type": "library",
          "options": [
            "H5P.Column 1.18"
          ]
        }
      ]
    }
  }
]