class Magick::RVG

def background_fill=(color)
    warn "background_fill= has no effect in nested RVG objects" if @nested
    if ! color.kind_of?(Magick::Pixel)
        begin
            @background_fill = Magick::Pixel.from_color(color)
        rescue Magick::ImageMagickError
            raise ArgumentError, "unknown color `#{color}'"
        rescue TypeError
            raise TypeError, "cannot convert #{color.class} into Pixel"
        rescue
            raise ArgumentError, "argument must be a color name or a Pixel (got #{color.class})"
        end
    else
        @background_fill = color
    end
end