    # File lib/rvg/misc.rb, line 600
                    def font_weight(weight)
                        # If the arg is not in the hash use it directly. Handles numeric values.
                        weight = FONT_WEIGHT.fetch(weight) {|key| key}
                        @gc.font_weight(weight)
                        @shadow[-1].font_weight = weight
                        nil
                    end