def inspect
      inspected = "<#{self.class.name} #{width}x#{height} ["
      for y in 0...height
        inspected << "\n\t[" << row(y).map { |p| ChunkyPNG::Color.to_hex(p) }.join(" ") << "]"
      end
      inspected << "\n]>"
    end
def inspect
      inspected = "<#{self.class.name} #{width}x#{height} ["
      for y in 0...height
        inspected << "\n\t[" << row(y).map { |p| ChunkyPNG::Color.to_hex(p) }.join(" ") << "]"
      end
      inspected << "\n]>"
    end
Alternative implementation of the inspect method.
 @return [String] A nicely formatted string representation of this canvas.
 @private