    # File lib/rvg/rvg.rb, line 216
            def initialize(width=nil, height=nil)
                super
                @width, @height = width, height
                @content = Content.new
                @canvas = nil
                @background_fill = nil
                @background_fill_opacity = 1.0  # applies only if background_fill= is used
                @background_position = :scaled
                @background_pattern, @background_image, @desc, @title, @metadata = nil
                @x, @y = 0.0, 0.0
                @nested = false
                yield(self) if block_given?
            end