o3de/Gems/Atom/Feature/Common/Registry/quality.setreg

{
    "O3DE": {
        "Quality": {
            "Groups": {
                "q_general": {
                    "Settings": {
                        "q_graphics": [ 0, 1, 2, 3 ] // map q_general levels 1 to 1 with graphics levels
                    }
                },
                "q_graphics": {
                    "Description": "Graphics quality settings.  0 : Low, 1 : Medium, 2 : High, 3 : VeryHigh",
                    "Levels": [
                        "Low",
                        "Medium",
                        "High",
                        "VeryHigh"
                    ],
                    "Default": 3,
                    "Settings": {
                        "q_shadows": [ 0, 1, 2, 3 ]
                    }
                },
                "q_shadows": {
                    "Description": "Shadow quality settings.  0 : Low, 1 : Medium, 2 : High, 3 : VeryHigh",
                    "Levels": [
                        "Low",
                        "Medium",
                        "High",
                        "VeryHigh"
                    ],
                    "Settings": {
                        // shadows console variable settings
                    }
                }
            }
        }
    }
}