{
  "_description": "Correct pane-level encoding placement for color, text, size, shape, lod. Encodings go in pane > encodings (NOT inside pane > view > mark — mark-level encodings get stripped by loadMetadataFromXml).",
  "_feature": "encoding,color,mark,pane",
  "full_pane_structure": {
    "_description": "Complete pane showing correct encoding placement",
    "type": "pane",
    "attrs": { "id": "2", "selection-relaxation-option": "selection-relaxation-disallow" },
    "children": [
      {
        "type": "view",
        "children": [{ "type": "breakdown", "attrs": { "value": "auto" } }]
      },
      { "type": "mark", "attrs": { "class": "Bar" } },
      {
        "type": "encodings",
        "children": [
          { "type": "color", "attrs": { "column": "[federated.XXXX].[none:Category:nk]" } },
          { "type": "size", "attrs": { "column": "[federated.XXXX].[sum:Profit:qk]" } },
          { "type": "text", "attrs": { "column": "[federated.XXXX].[sum:Sales:qk]" } },
          { "type": "lod", "attrs": { "column": "[federated.XXXX].[none:Region:nk]" } }
        ]
      }
    ]
  },
  "notes": {
    "encoding_types": ["color", "size", "text", "shape", "lod", "tooltip", "path", "angle"],
    "mark_class_values": ["Automatic", "Text", "Shape", "Bar", "GanttBar", "Line", "Area", "Circle", "Square", "Pie", "Polygon", "Heatmap", "Multipolygon"],
    "schema_path": "PaneSpecification-G > PaneSpecification-MarkEncodings-G",
    "WRONG_placement": "pane > view > mark > encoding — gets STRIPPED by loadMetadataFromXml",
    "CORRECT_placement": "pane > encodings > [color|size|text|shape|lod|tooltip]"
  }
}