PDF::Writer：PDF::SimpleTable#title_color, #title_color=

everyday Ruby 
require 'pdf/simpletable'

pdf = PDF::Writer.new

PDF::SimpleTable.new do |tab|
  tab.column_order = %w(col1 col2 col3)

  tab.title = "TITLE"

  p tab.title_color

  tab.show_lines = :all
  tab.title_color = Color::RGB::Blue
  p tab.title_color

  data = [
    { "col1" => "foo", "col2" => "bar", "col3" => "baz" },
  ]

  tab.data.replace data
  tab.render_on(pdf)
end

pdf.save_as("2008033000.pdf")

で、

#<Color::RGB:0x4025a004 @r=0.0, @b=0.0, @g=0.0>
#<Color::RGB:0x40259e74 @r=0.0, @b=1.0, @g=0.0>