chromium/src/third_party/blink/renderer/core/css/css_group_config.json5

// The grouping parameter is a cumulative distribution over the whole set of ranked
// CSS properties.
{
    "data": [
        {
            "name": "rare_non_inherited_properties_rule",
            "cumulative_distribution": [
                0.11925287356321838,
                0.23275862068965517,
                1.0
            ]
        },
        {
            "name": "rare_inherited_properties_rule",
            "cumulative_distribution": [
                0.5718390804597702,
                1.0
            ]
        }
    ],
    "parameters": {}
}