Variable boxBlurConst

boxBlur: MultipassFilter<
    {
        radius: {
            default: 3;
            description: "Half the side of the square, in pixels; 0 changes nothing.";
            label: "Radius (px)";
            max: 50;
            min: 0;
            type: "int";
            unit: "px";
        };
    },
> = ...