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": [
                0.134,
                0.327,
                1.0
            ]
        },
        {
            "name": "rare_inherited_properties_rule",
            "cumulative_distribution": [
                0.4,
                1.0
            ]
        }
    ],
    "parameters": {}
}