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     "groupId": "0",
     "height": 20,
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     "values": [
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    },
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     "label": "Permian",
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     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
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    }
   ],
   "legendGroups": [
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}