{
    "$schema": "https://json-schema.org/draft/2020-12/schema",
    "$id": "https://download.lammps.org/json/color-schema.json",
    "title": "JSON schema for LAMMPS default color and light definition for dump image",
    "description": "Version 0.1; last updated 2026-04-25",
    "type": "object",
    "properties": {
        "application": {
            "type": "string",
            "const": "LAMMPS"
        },
        "format": {
            "type": "string",
            "const": "colors"
        },
        "revision": {
            "type": "integer",
            "minimum": 1,
            "maximum": 1
        },
        "schema": {
            "type": "string"
        },
        "title": {
            "type": "string"
        },
        "colors": {
            "type": "array",
            "items": {
                "properties": {
                    "name": {
                        "type": "string"
                    },
                    "red": {
                        "type": "number",
                        "minimum": 0.0,
                        "maximum": 1.0
                    },
                    "green": {
                        "type": "number",
                        "minimum": 0.0,
                        "maximum": 1.0
                    },
                    "blue": {
                        "type": "number",
                        "minimum": 0.0,
                        "maximum": 1.0
                    }
                },
                "required": [
                    "red",
                    "green",
                    "blue"
                ]
            },
            "minItems": 1
        },
        "lights": {
            "type": "object",
            "properties": {
                "ambient": {
                    "type": "number",
                    "minimum": 0.0,
                    "maximum": 1.0
                },
                "key": {
                    "type": "number",
                    "minimum": 0.0,
                    "maximum": 1.0
                },
                "fill": {
                    "type": "number",
                    "minimum": 0.0,
                    "maximum": 1.0
                },
                "back": {
                    "type": "number",
                    "minimum": 0.0,
                    "maximum": 1.0
                }
            },
            "required": [
                "ambient",
                "key",
                "fill",
                "back"
            ]
        }
    },
    "required": [
        "application",
        "format",
        "revision",
        "colors",
        "lights"
    ]
}