SVGFEColorMatrixElement: {
    prototype: SVGFEColorMatrixElement;
    SVG_FECOLORMATRIX_TYPE_HUEROTATE: 3;
    SVG_FECOLORMATRIX_TYPE_LUMINANCETOALPHA: 4;
    SVG_FECOLORMATRIX_TYPE_MATRIX: 1;
    SVG_FECOLORMATRIX_TYPE_SATURATE: 2;
    SVG_FECOLORMATRIX_TYPE_UNKNOWN: 0;
    new (): SVGFEColorMatrixElement;
}